Yitang Zhang's theorem Updated 2025-07-16
There are infinitely many primes with a neighbor not further apart than 70 million. This was the first such finite bound to be proven, and therefore a major breakthrough.
This implies that for at least one value (or more) below 70 million there are infinitely many repetitions, but we don't know which e.g. we could have infinitely many:
or infinitely many:
or infinitely many:
or infinitely many:
but we don't know which of those.
The Prime k-tuple conjecture conjectures that it is all of them.
Also, if 70 million could be reduced down to 2, we would have a proof of the Twin prime conjecture, but this method would only work for (k, k + 2).
Cladogram Updated 2025-07-16
TODO vs Phylogenetic tree? www.visiblebody.com/blog/phylogenetic-trees-cladograms-and-how-to-read-them:
Cladograms and phylogenetic trees are functionally very similar, but they show different things. Cladograms do not indicate time or the amount of difference between groups, whereas phylogenetic trees often indicate time spans between branching points.
Webcam Updated 2025-07-16
PBS channel Updated 2025-07-16
Ontology Updated 2025-07-16
fast.ai Updated 2025-07-16
A pair of Austrailan deep learning training provider/consuntants that have produced a lot of good free learning materials:Authors:
Sauron Updated 2025-07-16
Four-day workweek Updated 2025-07-16
We need this. The five day week is designed to suck all the mental life of an average mental worker person, and it leaves basically nothing if they "do their job really well".
International Standard Music Number Updated 2025-07-16
Why was this so rarely used as of 2020s compared to ISBNs? It would have been perfect for helping find obscure records from Chinese traditional music and Indian classical music!
But instead we have Discogs, which is not too bad.
Punycode inscription Updated 2025-07-16
Namecoin examples are catalogued at: punycodes.xyz. The are small Unicode art or emoji code.
There seems to be nothing of particular artistic value as far as we've seen so far, the only interest in such tokens seems to be that:
Overfitting Updated 2025-07-16

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