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From Computational Complexity
#### Logic and lack of Logic of Anti Vaxers

I wrote the post below the dotted line a long time ago but never got around to posting it. Now that WHO says COVID emergency...

From Computational Complexity
#### Take a number and map it to the number of letters in its name

Let f: N--> N map a number to the number-of-letters in its name in English (we will consider other languages later).So for example 14 is fourteen so it maps tohere...

From Computational Complexity
#### Other Ramsey's

I often Google Ramsey stuff to find something. I often end up back on my own collection of Ramsey theory papers. But I sometimes find OTHER uses of the phrase...

From Computational Complexity
#### There are an infinite number of proofs that there are an infinite number of primes

In the last few years there have been four papers that prove the primes are infinite using some number theory and some Ramsey Theory. The papers are:Van der Waerden...

From Computational Complexity
#### Thoughts on Gordon Moore

Gordon Moore passed away on March 24, 2023. He was 94 years old. He is best known for the article Cramming more components onto integrated circuits. It appeared...

From Computational Complexity
#### The SIGACT Book Review column list of books it wants reviewed

I am posting this for Nick Tran who is the current SIGACT Book Review Editor (before him it was Fred Green for about 6 years, and before him it was me (Bill Gasarch)...

From Computational Complexity
#### New Upper Bound on R(k). WOW!

R(k) is the least n such that for all 2-colorings of the edges of \(K_n\) there is a monochromatic \(K_k\)(so there are k vertices such that the coloring restricted...

From Computational Complexity
#### Problems we assume are hard. Are they?

We think SAT is hard because (1) its NPC, and (2) many years of effort have failed to get it into P. Imagine a world where we didn't have the Cook-Levin Theorem...

From Computational Complexity
#### I wish we had less students in a Class. Demographics says I may get my wish.

According to this article, in the near future LESS people will be going to college. There is even a name for this upcoming shift: The Enrollment Cliff. Why?Ishere...

From Computational Complexity
#### It is more important than ever to teach your students probability (even non-stem students)

You are a college president. An online betting company says We will give you X dollars if you allow us to promote online gambling at your University.I suspecthere...

From Computational Complexity
#### When is a paper `Easily Available' ?

I was looking at the paper PSPACE-Completeness of reversible deterministic systemsby Erik Demaine, Robert Hearn, Dylan Hendrickson...

From Computational Complexity
#### After you are notified that an article is accepted...

After just one round of referees reports(they send me the reports, I made the corrections, they were happy) I got email saying my paper on proving the primes are...

From Computational Complexity
#### Why does pi come up so often? I don't know either but ...

Here is how history DID unfold:1) People noticed that the ratio of the circumference to the diameter of ANY circle is always the same, it's a number between 3this...

From Computational Complexity
#### The Betty White Award for 2022

In Dec 2021 I noted in this post, which was my 1000th post ever (according to Ken Regan, see here) that Betty White had the misfortune of dying on Dec 31, 2021,...

From Computational Complexity
#### ChatGPT tried to write an obit for Martin Davis. What it got right, wrong, and what to make of it.

When Martin Davis passed away Lance emailed me what he got from using ChatGPT to do an obit. Here it is and I also note what it got wrong.----------------------...

From Computational Complexity
#### Martin Davis Passed Away on Jan 1, 2023

As you probably already know from other sources, Martin Davis passed away on Jan 1, 2023, at the age of 94. His wife Virginia died a few hours later.He majoredOccasionally...

From Computational Complexity
#### Voter Suppression, Harvard Style

The following appeared on Harry Lewis's blog, here, hence it is written in his voice, though it is a co-authored. You'll see why later. I then have some comments...

From Computational Complexity
#### Commercials are not logical. FTX edition.

Some people asked me to comment on FTX since I teach Crypto. My insights are no better than anyone else; however, I have wanted to do a blog post about the illogic...

From Computational Complexity
#### Harry Lewis's talk on The Birth of Binary on Dec 8 (Thats today!)

More on the information on Harry Lewis's talk is in his blog post about it:here1) On Dec 8, 2022 Harry Lewis is giving the annual Thoraf Skolem Memorial Lecture...

From Computational Complexity
#### Would you be more productive if you didn't log on? It worked for Christopher Havens!

There are times when NOT having computer access (is that possible anymore?) can make you MORE productive. 1) I did a lot of my Muffin Work when I was in MexicoTexas...