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From Computational Complexity
#### Technical Difficulties

After returning from vacation last weekend (hello North Dakota--my 49th state visited), all sorts of odd problems arose. This blog stopped working, a P v NP paper...

From Computational Complexity
#### Intersecting Classes

If you have two complexity classes that have complete sets, the intersection might not, for example NP ∩ co-NP. The world of total-function classes acts differently...

From Computational Complexity
#### Collusion Rings

Grigory Yaroslavtsev now maintains the Theory Jobs Spreadsheet, a crowd-sourced listing of where your favorite CS theorists have taken new positions. Read his blog...

From Computational Complexity
#### The Future of Faculty Hiring

Faculty hiring in computer science is a process long due for an overhaul. The pandemic certainly changed some of the dynamics moving most of the interviews online...

From Computational Complexity
#### What happened to self-driving cars?

In 2014, I wrote a blog post about a fake company Elfdrive.
With a near record-setting investment announced last week, the self-driving car service Elfdrive is...

From Computational Complexity
#### Does the university matter?

As we come out of a pandemic with online teaching and research collaborations, how much do we actually need the university?Theoretical research in computer science...

From Computational Complexity
#### Emerging from the Pandemic

The City of Chicago yesterday agreed with the latest CDC guidelines that those of us fully vaccinated no longer have to wear masks in most settings. Lollapalooza...

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...