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From Computational Complexity

Cryptocurrency, Blockchains and NFTs

 I first wrote about bitcoin in this blog ten years ago after I gave a lecture in a cryptography class I taught at Northwestern. Two years later I had a follow-up...

From Computational Complexity

Negotiations

So you got an offer to be an assistant professor in the computer science department at Prestigious U. Congratulations! Time to negotiate your offer with the chair...

From Computational Complexity

The Million Dollar Sermon

Illinois Tech has one of the greatest origin stories for a university. In 1890 Frank Gunsaulus, a pastor on the south side of Chicago, gave a sermon where he said...

From Computational Complexity

Ordering Beauty

First, congratulations to fellow complexity theorist and blogger Scott Aaronson for receiving the 2020 ACM Prize in Computing for "groundbreaking contributionsMaradona...

From Computational Complexity

Quantum Stories

Scott Aaronson wrote last month about the hype over quantum computing. I'd thought I'd drop a few stories.I was once asked to review a grant proposal (outside the...

From Computational Complexity

Want to Buy a Theorem?

This is embarrassing to admit but after a few badly timed trades on GameStop options I find myself a bit tight on money. To raise some cash, I reluctantly decided...

From Computational Complexity

Slicing the Hypercube

Here's a neat result I heard about at virtual Dagstuhl last week, a new lower bound on the number of hyperplanes that cuts all the edges of a hypercube.A n-dimensional...

From Computational Complexity

I read the news today oh boy

I'm absolutely elated that Lázló Lovász and Avi Wigderson won the Abel Prize. More from the New York Times, Quanta Magazine and Gil Kalai. Another example ofspa...

From Computational Complexity

Cake Cutting in Overtime

There's a new proposal out of Baltimore for a new way to handle overtime in National Football League games. This post is about American Football, soccer has its...

From Computational Complexity

Complexity is the Enemy of Speed

The title of this post came from an opinion piece in the Wall Street Journal yesterday on vaccine distribution. Many attempts to get the vaccines to the right groups...

From Computational Complexity

A Blood Donation Puzzle

In the US you can donate whole blood every eight weeks. Suppose Elvira does exactly that. Will she hit every date of the year? For example, if Elvira gave blood...

From Computational Complexity

PhDs and Green Cards

Joe Biden's immigration policy has some interesting policies for PhDs. Biden will exempt from any cap recent graduates of PhD programs in STEM fields in the U.S...

From Computational Complexity

Alan Selman (1941-2021)

From a 1994 Dagstuhl Workshop. Selman is the one wearing a cap. Alan Selman, one of the early leaders in structural complexity and the co-founder and first chair...

From Computational Complexity

The Ethics Board

Back in 2014 I recommended a TCS ethics board mainly to deal with plagiarism and who should get credit for a result. It went the way of most suggestions I makeasked...

From Computational Complexity

Complexity Year in Review 2020

For the result of the year we go to all they way back to the "before times". MIP*=RE by Zhengfeng Ji, Anand Natarajan, Thomas Vidick, John Wright and Henry YuenA...

From Computational Complexity

Slowest Sorting Algorithms

Radu Gigore tweeted "People are obsessed with finding the best algorithms. What about the worst?" So here's a Christmas gift that keeps giving, the slowest of sorting...

From Computational Complexity

Optiland

Many of you have heard of Russell Impagliazzo's five worlds from his 1995 classic A personal view of average-case complexity In short  Algorithmica: P = NP orHeuristica...

From Computational Complexity

Shuffling Around

In the fall of 1983 as a junior at Cornell I took CS 481, Introduction to the Theory of Computing, from Juris Hartmanis. Needless to say this was the course that...

From Computational Complexity

Chess is Back

Back in 2005, I wrote a post titled Chess and Poker. Not really comparing the two but noting that Chess had lost its mojo while poker had high-stakes prime time...

From Computational Complexity

Vaughan Jones and Kaikoura

Vaughan Jones, one of the greatest mathematicians from New Zealand, passed away on September 6 at 67. Jones is an expert in knot theory among other areas and received...
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