> AI will be used in medicine broadly very soon

We have been hearing this since forever.

Revolutions do happen but not the way we expect. My anecdotical experience: no one in my team of about 30 people developing SW uses ChatGPT or similar in their day to day. This may change, or not.

AI is being used in medicine already. For example, in diagnostics. Most new diagnostics devices (e.g. CT scan, cardiograms) include AI systems that suggest an interpretation and point towards possible problems that a doctor might occasionally miss.

Granted, currently deployed systems are mostly awful, way behind the state of the art, and therefore mostly useless. Maybe it's because designing medical devices and getting them approved takes so long. Maybe it's because the manufacturers put AI in there for marketing purposes only, while assuming nobody will use the suggestiona anyway. In any case, I strongly expect the trend to continue and these systems to become very useful quite soon.

9 things is considered a standard for working memory (kind of like processor registers), for people with ADHD it's even less - 3-5.

Try writing a number from one piece of paper to another. If it's more than 7-9 numbers, you won't do it in one shot, unless you spend extra time memorizing it.

The equivalent for computers would be L1 cache on the CPU which is tiny.

More like cpu registers I would say :)

That can be increased quite a bit with practice. But it's also not important. It's just the cache memory -- it isn't the limit of what can be learned and recalled.

It is a limit on what you can reason about without a piece of paper.

I’m proficient at math, but my working memory is around 6, so I cannot add two three digit numbers to each other in my head (unless I see numbers to be added in front of me).

OK, but I and nearly all of my friends can, so we have duelling anecdotes here.