Archive for the ‘Announcements’ Category

Summer recapitulates life

Tuesday, July 24th, 2018

Last week, I was back at the IAS in Princeton, to speak at a wonderful PITP summer school entitled “From Qubits to Spacetime,” co-organized by Juan Maldacena and Edward Witten. This week, I’ll be back in Waterloo, to visit old and new friends at the Perimeter Institute and Institute for Quantum Computing and give a couple talks.  Then, over the weekend, I’ll be back in Boston to see old friends, colleagues, and students.  After some other miscellaneous travel, I’ll then return to Austin in late August when the semester begins.  The particular sequence IAS → Waterloo → Boston → Austin is of course one that I’ve followed before, over a longer timescale.

Two quick announcements:

First, at the suggestion of reader Sanketh Menda, I’m thinking of holding a Shtetl-Optimized meetup in Waterloo this week.  Please send me an email if you’re interested, and we’ll figure out a time and place that work for everyone.

Second, many of the videos from the IAS summer school are now available, including mine: Part I and Part II.  I cover some basics of complexity theory, the complexity of quantum states and unitary transformations, the Harlow-Hayden argument about the complexity of turning a black hole event horizon into a firewall (with my refinement), and my and Lenny Susskind’s work on circuit complexity, wormholes, and AdS/CFT.  As a special bonus, check out the super-embarrassing goof at the beginning of my first lecture—claiming a mistaken symmetry of conditional entropy and even attributing it to Edward Witten’s lecture!  (But Witten, who I met for the first time on this visit, was kind enough to call my talk “lots of fun” anyway, and give me other positive comments, which I should put on my CV or something.)

Addendum: Many of the PITP videos are well worth watching!  As one example, I found Witten’s talks to be shockingly accessible.  I’d been to a previous talk of his involving Khovanov homology, but beyond the first few minutes, it went so far over my head that I couldn’t tell you how it was for its intended audience.  I’d also been to a popular talk of Witten’s on string theory, but that’s something he could do with only 3 awake brain cells.  In these talks, by contrast, Witten proves some basic inequalities of classical and quantum information theory, then proves the Reeh-Schlieder Theorem of quantum field theory and the Hawking and Penrose singularity theorems of GR, and finally uses quantum information theory to prove positive energy conditions from quantum field theory that are often needed to make statements about GR.

Customers who liked this quantum recommendation engine might also like its dequantization

Thursday, July 12th, 2018

I’m in Boulder, CO right now for the wonderful Boulder summer school on quantum information, where I’ll be lecturing today and tomorrow on introductory quantum algorithms.  But I now face the happy obligation of taking a break from all the lecture-preparing and schmoozing, to blog about a striking new result by a student of mine—a result that will probably make an appearance in my lectures as well.

Yesterday, Ewin Tang—an 18-year-old who just finished a bachelor’s at UT Austin, and who will be starting a PhD in CS at the University of Washington in the fall—posted a preprint entitled A quantum-inspired classical algorithm for recommendation systems. Ewin’s new algorithm solves the following problem, very loosely stated: given m users and n products, and incomplete data about which users like which products, organized into a convenient binary tree data structure; and given also the assumption that the full m×n preference matrix is low-rank (i.e., that there are not too many ways the users vary in their preferences), sample some products that a given user is likely to want to buy.  This is an abstraction of the problem that’s famously faced by Amazon and Netflix, every time they tell you which books or movies you “might enjoy.”  What’s striking about Ewin’s algorithm is that it uses only polylogarithmic time: that is, time polynomial in log(m), log(n), the matrix rank, and the inverses of the relevant error parameters.  Admittedly, the polynomial involves exponents of 33 and 24: so, not exactly “practical”!  But it seems likely to me that the algorithm will run much, much faster in practice than it can be guaranteed to run in theory.  Indeed, if any readers would like to implement the thing and test it out, please let us know in the comments section!

As the title suggests, Ewin’s algorithm was directly inspired by a quantum algorithm for the same problem, which Kerenidis and Prakash (henceforth KP) gave in 2016, and whose claim to fame was that it, too, ran in polylog(m,n) time.  Prior to Ewin’s result, the KP algorithm was arguably the strongest candidate there was for an exponential quantum speedup for a real-world machine learning problem.  The new result thus, I think, significantly changes the landscape of quantum machine learning, by killing off one of its flagship applications.  (Note that whether KP gives a real exponential speedup was one of the main open problems mentioned in John Preskill’s survey on the applications of near-term quantum computers.)  At the same time, Ewin’s result yields a new algorithm that can be run on today’s computers, that could conceivably be useful to those who need to recommend products to customers, and that was only discovered by exploiting intuition that came from quantum computing. So I’d consider this both a defeat and a victory for quantum algorithms research.

This result was the outcome of Ewin’s undergraduate thesis project (!), which I supervised. A year and a half ago, Ewin took my intro quantum information class, whereupon it quickly became clear that I should offer this person an independent project.  So I gave Ewin the problem of proving a poly(m,n) lower bound on the number of queries that any classical randomized algorithm would need to make to the user preference data, in order to generate product recommendations for a given user, in exactly the same setting that KP had studied.  This seemed obvious to me: in their algorithm, KP made essential use of quantum phase estimation, the same primitive used in Shor’s factoring algorithm.  Without phase estimation, you seemed to be stuck doing linear algebra on the full m×n matrix, which of course would take poly(m,n) time.  But KP had left the problem open, I didn’t know how to solve it either, and nailing it down seemed like an obvious challenge, if we wanted to establish the reality of quantum speedups for at least one practical machine learning problem.  (For the difficulties in finding such speedups, see my essay for Nature Physics, much of which is still relevant even though it was written prior to KP.)

Anyway, for a year, Ewin tried and failed to rule out a superfast classical algorithm for the KP problem—eventually, of course, discovering the unexpected reason for the failure!  Throughout this journey, I served as Ewin’s occasional sounding board, but can take no further credit for the result.  Indeed, I admit that I was initially skeptical when Ewin told me that phase estimation did not look essential after all for generating superfast recommendations—that a classical algorithm could get a similar effect by randomly sampling a tiny submatrix of the user preference matrix, and then carefully exploiting a variant of a 2004 result by Frieze, Kannan, and Vempala.  So when I was in Berkeley a few weeks ago for the Simons quantum computing program, I had the idea of flying Ewin over to explain the new result to the experts, including Kerenidis and Prakash themselves.  After four hours of lectures and Q&A, a consensus emerged that the thing looked solid.  Only after that gauntlet did I advise Ewin to put the preprint online.

So what’s next?  Well, one obvious challenge is to bring down the running time of Ewin’s algorithm, and (as I mentioned before) to investigate whether or not it could give a practical benefit today.  A different challenge is to find some other example of a quantum algorithm that solves a real-world machine learning problem with only a polylogarithmic number of queries … one for which the exponential quantum speedup will hopefully be Ewin-proof, ideally even provably so!  The field is now wide open.  It’s possible that my Forrelation problem, which Raz and Tal recently used for their breakthrough oracle separation between BQP and PH, could be an ingredient in such a separation.

Anyway, there’s much more to say about Ewin’s achievement, but I now need to run to lecture about quantum algorithms like Simon’s and Shor’s, which do achieve provable exponential speedups in query complexity!  Please join me in offering hearty congratulations, see Ewin’s nicely-written paper for details, and if you have any questions for me or (better yet) Ewin, feel free to ask in the comments.

Update: On the Hacker News thread, some commenters are lamenting that such a brilliant mind as Ewin’s would spend its time figuring out how to entice consumers to buy even more products that they don’t need. I confess that that’s an angle that hadn’t even occurred to me: I simply thought that it was a beautiful question whether you actually need a quantum computer to sample the rows of a partially-specified low-rank matrix in polylogarithmic time, and if the application to recommendation systems helped to motivate that question, then so much the better. Now, though, I feel compelled to point out that, in addition to the potentially lucrative application to Amazon and Netflix, research on low-rank matrix sampling algorithms might someday find many other, more economically worthless applications as well.

Another Update: For those who are interested, streaming video of my quantum algorithms lectures in Boulder are now available:

You can also see all the other lectures here.

My Y Combinator podcast

Friday, June 29th, 2018

Here it is, recorded last week at Y Combinator’s office in San Francisco.  For regular readers of this blog, there will be a few things that are new—research projects I’ve been working on this year—and many things that are old.  Hope you enjoy it!  Thanks so much to Craig Cannon of Y Combinator for inviting me.

Associated with the podcast, Hacker News will be doing an AMA with me later today.  I’ll post a link to that when it’s available.  Update: here it is.

I’m at STOC’2018 TheoryFest in Los Angeles right now, where theoretical computer scientists celebrated the 50th anniversary of the conference that in some sense was the birthplace of the P vs. NP problem.  (Two participants in the very first STOC in 1969, Richard Karp and Allan Borodin, were on a panel to share their memories, along with Ronitt Rubinfeld and Avrim Blum, who joined the action in the 1980s.)  There’s been a great program this year—if you’d like to ask me about it, maybe do so in the comments of this post rather than in the AMA.

Five announcements

Tuesday, June 12th, 2018
  1. For the next two weeks, I’m in Berkeley for the Simons program “Challenges in Quantum Computation” (awesome program, by the way).  If you’re in the Bay Area and wanted to meet, feel free to shoot me an email (easiest for me if you come to Berkeley, though I do have a couple planned trips to SF).  If enough people wanted, we could even do a first-ever dedicated Shtetl-Optimized meetup.
  2. More broadly: I’m finally finished my yearlong sabbatical in Israel.  At some point I’ll do a post with my reflections on the experience.  I’ll now be traveling around North America all summer, then returning to UT Austin in the fall.
  3. Longtime friend-of-the-blog Boaz Barak, from a university in Cambridge, MA known as Harvard, asks me to invite readers to check out his new free draft textbook Introduction to Theoretical Computer Science, and to post comments about “typos, bugs, confusing explanations and such” in the book’s GitHub repository.  It looks great!
  4. This is already almost a month old, but if you enjoy the quantum computing content on this blog and wish to see related content from our carefully selected partners, check out John Preskill’s Y Combinator interview.
  5. Here’s the text of Senator Kamala Harris’s bill, currently working its way through the Senate, to create a US Quantum Computing Research Consortium.  Apparently there’s now also a second, competing quantum computing bill (!)—has anyone seen the text of that one?

Update (June 16): Even though I said there wouldn’t be a meetup, enough people eventually emailed wanting to have coffee that we did do the first-ever dedicated Shtetl-Optimized meetup after all—appropriately, given the title of the blog, at Saul’s Delicatessen in Berkeley. It was awesome. I met people working on fascinating and important things, from cheap nuclear energy to data analytics for downballot Democrats, and who I felt very proud to count as readers. Thanks so much to everyone who came; we’ll have to do another one sometime!

Amazing progress on longstanding open problems

Wednesday, April 11th, 2018

For those who haven’t seen it:

  1. Aubrey de Grey, better known to the world as a radical life extension researcher, on Sunday posted a preprint on the arXiv claiming to prove that the chromatic number of the plane is at least 5—the first significant progress on the Hadwiger-Nelson problem since 1950.  If you’re tuning in from home, the Hadwiger-Nelson problem asks: what’s the minimum number of colors that you need to color the Euclidean plane, in order to ensure that every two points at distance exactly 1 from each other are colored differently?  It’s not hard to show that at least 4 colors are necessary, or that 7 colors suffice: try convincing yourself by staring at the figure below.  Until a few days ago, nothing better was known.
    This is a problem that’s intrigued me ever since I learned about it at a math camp in 1996, and that I spent at least a day of my teenagerhood trying to solve.
    De Grey constructs an explicit graph with unit distances—originally with 1567 vertices, now with 1585 vertices after after a bug was fixed—and then verifies by computer search (which takes a few hours) that 5 colors are needed for it.  Update: My good friend Marijn Heule, at UT Austin, has now apparently found a smaller such graph, with “only” 874 vertices.  See here.
    So, can we be confident that the proof will stand—i.e., that there are no further bugs?  See the comments of Gil Kalai’s post for discussion.  Briefly, though, it’s now been independently verified, using different SAT-solvers, that the chromatic number of de Grey’s corrected graph is indeed 5.  Paul Phillips emailed to tell me that he’s now independently verified that the graph is unit distance as well.  So I think it’s time to declare the result correct.
    Question for experts: is there a general principle by which we can show that, if the chromatic number of the plane is at least 6, or is 7, then there exists a finite subgraph that witnesses it?  (This is closely related to asking, what’s the logical complexity of the Hadwiger-Nelson problem: is it Π1?)  Update: As de Grey and a commenter pointed out to me, this is the de Bruijn-Erdös Theorem from 1951.  But the proofs inherently require the Axiom of Choice.  Assuming AC, this also gives you that Hadwiger-Nslson is a Π1 statement, since the coordinates of the points in any finite counterexample can be assumed to be algebraic. However, this also raises the strange possibility that the chromatic number of the plane could be smaller assuming AC than not assuming it.
  2. Last week, Urmila Mahadev, a student (as was I, oh so many years ago) of Umesh Vazirani at Berkeley, posted a preprint on the arXiv giving a protocol for a quantum computer to prove the results of any computation it performs to a classical skeptic—assuming a relatively standard cryptographic assumption, namely the quantum hardness of the Learning With Errors (LWE) problem, and requiring only classical communication between the skeptic and the QC.  I don’t know how many readers remember, but way back in 2006, inspired by a $25,000 prize offered by Stephen Wolfram, I decided to offer a $25 prize to anyone who could solve the problem of proving the results of an arbitrary quantum computation to a classical skeptic, or who could give oracle evidence that a solution was impossible.  I had first learned this fundamental problem from Daniel Gottesman.
    Just a year or two later, independent work of Aharonov, Ben-Or, and Eban, and of Broadbent, Fitzsimons, and Kashefi made a major advance on the problem, by giving protocols that were information-theoretically secure.  The downside was that, in contrast to Mahadev’s new protocol, these earlier protocols required the verifier to be a little bit quantum: in particular, to exchange individual unentangled qubits with the QC.  Or, as shown by later work, the verifier could be completely classical, but only if it could send challenges to two or more quantum computers that were entangled but unable to communicate with each other.  In light of these achievements, I decided to award both groups their own checks for half the prize amount ($12.50), to be split among themselves however they chose.
    Neither with Broadbent et al.’s or Aharonov et al.’s earlier work, nor with Mahadev’s new work, is it immediately clear whether the protocols relativize (that is, whether they work relative to an arbitrary oracle), but it’s plausible that they don’t.
    Anyway, assuming that her breakthrough result stands, I look forward to awarding Urmila the full $25 prize when I see her at the Simons Institute in Berkeley this June.

Huge congratulations to Aubrey and Urmila for their achievements!

Update (April 12): My friend Virgi Vassilevska Williams asked me to announce a theoretical computer science women event, which will take during the upcoming STOC in LA.

Another Update: Another friend, Holden Karnofsky of the Open Philanthropy Project, asked me to advertise that OpenPhil is looking to hire a Research Analyst and Senior Research Analyst. See also this Medium piece (“Hiring Analytical Thinkers to Help Give Away Billions”) to learn more about what the job would involve.

Two announcements

Saturday, April 7th, 2018

Before my next main course comes out of the oven, I bring you two palate-cleansing appetizers:

  1. My childhood best friend Alex Halderman, whose heroic exploits helping to secure the world’s voting systems have often been featured on this blog, now has a beautifully produced video for the New York Times, entitled “I Hacked An Election.  So Can The Russians.”  Here Alex lays out the case for an audited paper trail—i.e., for what the world’s cybersecurity experts have been unanimously flailing their arms about for two decades—in terms so simple and vivid that even Congresspeople should be able to understand them.  Please consider sharing the video if you support this important cause.
  2. Jakob Nordstrom asked me to advertise the 5th Swedish Summer School in Computer Science, to be held August 5-11, 2018, in the beautiful Stockholm archipelago at Djuronaset.  This year the focus is on quantum computing, and the lecturers are two of my favorite people in the entire field: Ronald de Wolf (giving a broad intro to QC) and Oded Regev (lecturing on post-quantum cryptography).  The school is mainly for PhD students, but is also open to masters students, postdocs, and faculty.  If you wanted to spend one week getting up to speed on quantum, it’s hard for me to imagine that you’d find any opportunity more excellent.  The application deadline is April 20, so apply now if you’re interested!

Three updates

Monday, February 5th, 2018
  1. I was extremely sorry to learn about the loss of Joe Polchinski, a few days ago, to brain cancer.  Joe was a leading string theorist, one of the four co-discoverers of the AMPS firewall paradox, and one of the major figures in the Simons It from Qubit collaboration that I’ve been happy to be part of since its inception.  I regret that I didn’t get to know Joe as well as I should have, but he was kind to me in all of our interactions.  He’ll be missed by all who knew him.
  2. Edge has posted what will apparently be its final Annual Edge Question: “What is the last question?”  They asked people to submit just a single, one sentence question “for which they’ll be remembered,” with no further explanation or elaboration.  You can read mine, which not surprisingly is alphabetically the first.  I tried to devise a single question that gestured toward the P vs. NP problem, and the ultimate physical limits of computation, and the prospects for superintelligent AI, and the enormity of what could be Platonically lying in wait for us within finite but exponentially search spaces, and the eternal nerd’s conundrum, of the ability to get the right answers to clearly-stated questions being so ineffectual in the actual world.  I’m not thrilled with the result, but reading through the other questions makes it clear just how challenging it is to ask something that doesn’t boil down to: “When will the rest of the world recognize the importance of my research topic?”
  3. I’m now reaping the fruits of my decision to take a year-long sabbatical from talking to journalists.  Ariel Bleicher, a writer for Quanta magazine, asked to interview me for an article she was writing about the difficulty of establishing quantum supremacy.  I demurred, mentioning my sabbatical, and pointed her to others she could ask instead.  Well, last week the article came out, and while much of it is quite good, it opens with an extended presentation of a forehead-bangingly wrong claim by Cristian Calude: namely, that the Deutsch-Jozsa problem (i.e. computing the parity of two bits) can be solved with one query even by a classical algorithm, so that (in effect) one of the central examples used in introductory quantum computing courses is a lie.  This claim is based on a 2006 paper wherein, with all the benefits of theft over honest toil, Calude changes the query model so that you can evaluate not just the original oracle function f, but an extension of f to the complex numbers (!).  Apparently Calude justifies this by saying that Deutsch also changed the problem, by allowing it to be solved with a quantum computer, so he gets to change the problem as well.  The difference, of course, is that the quantum query complexity model is justified by its relevance for quantum algorithms, and (ultimately) by quantum mechanics being true of our world.  Calude’s model, by contrast, is (as far as I can tell) pulled out of thin air and justified by nothing.  Anyway, I regard this incident as entirely, 100% my fault, and 0% Ariel’s.  How was she to know that, while there are hundreds of knowledgeable quantum computing experts to interview, almost all of them are nice and polite?  Anyway, this has led me to a revised policy: while I’ll still decline interviews, news organizations should feel free to run completed quantum computing pieces by me for quick fact checks.

Classifieds thread

Sunday, December 24th, 2017

In addition to the emails from journalists, I also get a large number of emails seeking interactions with me—a discussion of cryptocurrencies, help in planning a political campaign, whatever—that could probably be had just as well, or better, with some other reader of this blog.  So inspired by Slate Star Codex, my lodestar of blog-greatness, I’ve decided to host Shtetl-Optimized‘s first ever classifieds thread.  This is your place to post any announcement, ad, offer, proposal, etc. that you think would be of particular interest to fellow Shtetl-Optimized readers.  As usual, I reserve the right to remove anything too spammy or otherwise unsuitable (“C@$H 4 G0LD!!!”), but will generally be pretty permissive.

Oh yes: Merry Christmas to those who celebrate it, from a spot roughly equal driving distance (about an hour 20 minutes) from Nazareth and Bethlehem!

Update: OK, let me start the ball rolling, or rather the photon propagating. Reader Piotr Migdal wrote to tell me about a quantum optics puzzle game that he created. I tried it and it’s excellent, and best of all clear: unlike virtually every other “quantum game” I’ve tried, it took me only a minute to figure this one out. (Admittedly, it’s less of a quantum game than an “optics game,” in the sense that the effects it teaches about also appear with laser beams and other many-photon coherent states, which you don’t really need QM for, even though QM provides their ultimate explanation. But whatever: it’s fun!) Piotr has lots of other great stuff on his website.

Journalist moratorium

Sunday, December 17th, 2017

For over a decade, one of the main ways I’ve tried to advance the cause of Enlightenment has been talking to journalists writing popular articles on quantum computing (or P vs. NP, or the universe as a computer simulation, or whatever).  Because of my blog, journalists knew how to reach me, and because I’m a ham, I always agreed to be interviewed.  Well, I told myself I was doing it as my way of giving back to the field, so that my smarter colleagues would have more time for research.

Unfortunately, this task has sort of taken over my life.  It used to be once a month, then it became once a week, and by now it’s pretty much every day.  Comment on this claim by IBM, that press release by Rigetti, this embargoed Nature paper by a group in Australia.  And when you do, it would be great if you could address this itemized list of 12 questions, with more questions coming later depending on what the editor needs.

On Friday we were on a family outing, with Dana driving and me in the front passenger seat, typing out another reply to a journalist on my phone.  Because of my engrossment in my Enlightenment duties, I neglected to tell Dana where the exit was, which then made us a half hour late for a scheduled museum tour and nearly ruined the day.

So then and there, I swore an oath to my family: that from now until January 1, 2019, I will be on vacation from talking to journalists.  This is my New Years resolution, except that it starts slightly before New Years.  Exceptions can be made when and if there’s a serious claim to have achieved quantum computational supremacy, or in other special cases.  By and large, though, I’ll simply be pointing journalists to this post, as a public commitment device to help me keep my oath.

I should add that I really like almost all of the journalists I talk to, I genuinely want to help them, and I appreciate the extreme difficulty that they’re up against: of writing a quantum computing article that avoids the Exponential Parallelism Fallacy and the “n qubits = 2n bits” fallacy and passes the Minus Sign Test, yet also satisfies an editor for whom even the so-dumbed-down-you-rip-your-hair-out version was already too technical.  And things have gotten both more exciting and more confusing in the last few years, with even the experts disagreeing about what should count as a “real quantum speedup,” or how much we should expect quantum computers to help with optimization or machine learning problems.  And of course, if journalists are trying to sort this out, then they should talk to someone who knows a bit about it, and I lack the strategic false modesty to deny being such a person.  Like, someone who calls me to fact-check a quantum computing piece should be rewarded for having done something right!  Alas, these considerations are how I let talking to journalists take over my life, so I can no longer treat them as dispositive.

For journalists looking for what to do, my suggestion is to talk to literally anyone else in the field.  E.g., look at the speakers from the past 20 years of QIP conferences—pretty much any of them could answer quantum computing questions as well as I can!  I’m tempted to name one or two specific colleagues to whom everyone should direct all their inquiries for the next year, but I can’t think of anyone I hate enough.

Unrelated Update: There’s at least one striking respect in which a human baby is like a dog, cat, or other domesticated animal. Namely, these are entities for which you can look into their eyes, and wonder whether they have any awareness whatsoever of the most basic facts of their situation. E.g., do they “know” which individual person is looking at them? Whether it’s morning or night? Which room they’re currently in? And yet, as soon as it comes to the entity’s food sources, all these doubts vanish. Yes, the baby / dog / cat clearly does understand exactly which person is supposed to feed it, and at what time of day, and often even where the food is stored. Implications for the mind/body problem (mind/stomach problem?) are left as exercises for the reader.

Unrelated Update #2: As many of you have probably seen, the cruel and monstrous tax bill awaits only Twitler’s signature, but at least the PhD student tuition tax was taken out, so American higher education lives another day. So, does this mean academics’ apoplectic fears were overblown? No, because public opposition, based on widely disseminated information about what the new tax would do to higher education, probably played an important role in causing the provision to be removed. Keep up the fight.

ITCS’2018 and more

Wednesday, December 13th, 2017

My good friend Yael Tauman Kalai asked me to share the following announcement (which is the only part of this post that she’s responsible for):

Dear Colleagues,

We are writing to draw your attention to the upcoming ITCS (Innovations in Theoretical Computer Science ) conference, which will be held in Cambridge, Massachusetts, USA from January 11-14, 2018, with a welcome reception on January 11, 2018 at the Marriott Hotel in Kendall Square.  Note that the conference will run for 4 full days (ThursdaySunday).

The deadline for early registration and hotel block are both December 21, 2017.

ITCS has a long tradition of holding a “graduating bits” event where graduating students and postdocs give a short presentation about their work. If you fit the bill, consider signing up — this is a great chance to showcase your work and it’s just plain fun. Graduating bits will take place on Friday, January 12 at 6:30pm.

In addition, we will have an evening poster session at the Marriott hotel on Thursday, January 11 from 6:30-8pm (co-located with the conference reception).

For details on all this and information on how to sign up, please check out the ITCS website:

In unrelated news, apologies that my entire website was down for a day! After noticing that my blog was often taking me like two minutes to load (!), I upgraded to a supposedly faster Bluehost plan. Let me know if you notice any difference in performance.

In more unrelated news, congratulations to the people of Alabama for not only rejecting the medieval molester (barely), but—as it happens—electing a far better Senator than the President that the US as a whole was able to produce.

One last update: my cousin Alix Genter—who was previously in the national news (and my blog) for a bridal store’s refusal to sell her a dress for a same-sex wedding—recently started a freelance academic editing business. Alix writes to me:

I work with scholars (including non-native English speakers) who have difficulty writing on diverse projects, from graduate work to professional publications. Although I have more expertise in historical writing and topics within gender/sexuality studies, I am interested in scholarship throughout the humanities and qualitative social sciences.

If you’re interested, you can visit Alix’s website here. She’s my cousin, so I’m not totally unbiased, but I recommend her highly.

OK, one last last update: my friend Dmitri Maslov, at the National Science Foundation, has asked me to share the following.

NSF has recently posted a new Dear Colleague Letter (DCL) inviting proposal submissions under RAISE mechanism,  Interdisciplinarity is a key in this new DCL.  The proposals can be for up to $1,000,000 total.  To apply, groups of PIs should contact cognizant Program Directors from at least three of the following NSF divisions/offices: DMR, PHY, CHE, DMS, ECCS, CCF, and OAC, and submit a whitepaper by February 16, 2018.  It is a somewhat unusual call for proposals in this respect.  I would like the Computer Science community to actively participate in this call, because I believe there may be a lot of value in collaborations breaking the boundaries of the individual disciplines.