My brother-in-law is a CEO of two companies with more than 300 employees. He's a smart, hard working honest guy that looks out for his people. This was his bank for both of his business. They were profitable and doing well. There's a chance that he and all of his employees will be out of work. Many thousands of people may end up losing their jobs over this. This is the second biggest bank failure in US history..

If you have business accounts in the tens or hundreds of millions of dollars, how do you protect yourself from an insurance perspective? FDIC only covers up to $250K. Can you open up and aggregate several hundred accounts such that you're FDIC insured?

There's a lot of things CEOs have to worry about when growing a business, I'm sure many of them are blindsided by this. Practical advice is welcome. It also seems smart to use multiple banks.

What is your take on scaling up stellarators as a competition for the ITER? Your take was very informative.

https://en.wikipedia.org/wiki/...

I wonder to what extent these journals can be recovered on archive.org .. It also seems worthy to donate money to them for the good that they do us all. I found great material that would have otherwise been lost. Here is one such interesting and amusing website: https://web.archive.org/web/20...

slight correction: A computational biologist colleague of mine made these comments about the efficacy of a vaccine

There is a website, https://nextstrain.org/ncov, that takes in the DNA sequences of viruses from researchers all over the world, like SARS-CoV-2, and tracks their mutation rate as a function of time.It likely won't come back every year, but it has the potential for every 2.5 to 3 years based upon available data. Nextstrain estimates 8 × 10^-4 mutations per nucleotide per year, and influenza is more like ~2 x 10^-3 So it looks like it has a lower mutation rate overall.

A computational biologist colleague of mine made these comments based about the efficacy of a vaccine: "It also has FAR less genetic diversity relative to influenza, so a vaccine might be able to affect the entire population"

Is there such a thing as an unauthorized repair shop?

Which vendors are known for their ease of repair, and support for their customers? I sometimes see deals for cameras on ebay, so called "imported models" but don't know what the manufacturer's stance is on these in terms of long term repair. It seems there are a lot of complications to owning high end camera gear, and these things are expensive an easy to break.

"I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character."

I spent the first few years of my life as the only white kid in an all black school. Even the teachers hated me, and was ostracized and vilified, despite being a friendly kid. I've had first hand experience with racism, and have a low tolerance of it from any direction. I really dislike all of this anti-white & identity politics.

In The Cloud Minders, there was a population that lived in a city in the sky that devoted their lives to art, philosophy, music and leisure; a city of intellectuals, and a population of miners on the ground that spent their brutish lives mining "zenite", and were known for their violence and a perception of their stupidity that were discriminated against by the Stratos city dwellers, but it all stemmed from an invisible gas emitted by the zenite.

https://memory-alpha.fandom.co...

For a time, I was on a small team that developed a working cancer cell sorting robot, and got exposed to the Bayesian statistics of circulating tumor cells in a deciliter of blood; that a patient with 5 or less cancer cells ,if I recall, was considered to be in remission but 6 or more was considered to be terminal, and is the threshold where the immune system is not strong enough to fight it. (It was really important to get an accurate cell count)

Cancer cells are apoptotic as they are under attack from the immune system, and are therefore much more fragile than regular cells

This is a great website to quash internet hoaxes, and disinformation. It looks like they need our help to keep up the fight :

https://www.snopes.com/support...

I had the opportunity to be the 2nd employee of a company that later had an evaluation over over a billion dollars at some point. It allowed this start-up to find people quickly without spending too much money. It's a tool like any other that allows you to be in the driver seat .

I tend not to accept recruiter invitations, but I do like keeping tabs on former coworkers. 70% of all jobs are found through personal contacts.

I'm reminded of Oliver Heaviside, who refactored Maxwell's equations into the useful and familiar vector notation that has adorned many tshirts of electrical engineering and physics students. Heaviside took an unwieldy set of twenty field equations, and reduced them to four. I do wonder what insights we can potentially learn if the model itself is refactored into an elegant form.

Her PhD thesis: https://arxiv.org/pdf/1611.091...

The mathematician John Baez has an engaging writing style, and gave an amusing account of octonian numbers (His blog is very interesting BTW): http://math.ucr.edu/home/baez/

"There are exactly four normed division algebras: the real numbers (R), complex numbers (C), quaternions (H), and octonions (O). The real numbers are the dependable breadwinner of the family, the complete ordered field we all rely on. The complex numbers are a slightly flashier but still respectable younger brother: not ordered, but algebraically complete. The quaternions, being noncommutative, are the eccentric cousin who is shunned at important family gatherings. But the octonions are the crazy old uncle nobody lets out of the attic: they are nonassociative."

http://math.ucr.edu/home/baez/...