I think the trick is to make an effort to cover as many possibilities as can be dealt with by a reasonable effort (definition of “reasonable” varies significantly by context) when setting up something which you expect the general public to interact with. Not so much assuming that any given person has some disability you can’t see, but that any large group of people will have at least a few.

Interactions with a specific person are another matter entirely, as you point out. There, I think the best you can do is roll with it if someone tells you that they’re unable to do something without subjecting them to interrogation or scepticism

Sure, but there are far more things which will kill the entire person at the same dose they’ll kill the cancer than things which can be carefully controlled by choosing the right dose.

These studies which claim to kill cancer in a petri dish usually turn out to be the former, because not killing the host is the difficult part

An experimental capability being kicked out of the kernel, so that it has to settle for being a kernel module or custom forks of the kernel, is absolutely a minor matter

This is a non-issue, being over-reported by people looking for clicks. A minor technical matter being handled by the person ultimately responsible for handling such things

Israel and trump appear to be claiming to have defeated the Iranian air defense, and achieve air supremacy over the Iranian capital.

If that’s true then Iran is in deep trouble, and inviting them to surrender wouldn’t be unreasonable. I very much doubt that it is true, but that’s what they seem to believe

It’s far harder to achieve mass manipulation of the ballot when it’s all being handled by a lot of human hands. If it’s managed by computers, then by finding a bug or other vulnerability in the software or database you could alter the whole election.

Meanwhile, to manipulate a paper ballot & hand-counted election in the same way you’d need the cooperation of a huge number of people, and you’d need them all to keep their mouths shut. That’s far more difficult than defeating a computerised system

That really isn’t how that works. The US has declared that they won’t allow the international courts to get involved, but that doesn’t necessarily prevent those courts from disagreeing.

“Jurisdiction” is only a thing when a court answers to some higher authority who has limited what that court can do. Since the international courts theoretically don’t answer to the US government, they can make any ruling they like.

They’re unlikely to bother, since they probably won’t be in a position to enforce any ruling against typical foot soldiers, but they absolutely could if it came to that point

That’s an implementation detail, not really relevant to my point.

I don’t think you appreciate how powerful those magnets are. Any ferromagnetic object would be doing well to avoid binding up completely when held right up to the device

Realistically, the mechanism would jam. I doubt the hammer would fall, being squeezed hard against whatever structure supports it

Honestly I think it’s misleading to describe it as being “defined” as 1, precisely because it makes it sounds like someone was trying to squeeze the definition into a convenient shape.

I say, rather, that it naturally turns out to be that way because of the nature of the sequence. You can’t really choose anything else

X^0 and 0! aren’t actually special cases though, you can reach them logically from things which are obvious.

For X^0: you can get from X^(n) to X^(n-1) by dividing by X. That works for all n, so we can say for example that 2³ is 2⁴/2, which is 16/2 which is 8. Similarly, 2¹/2 is 2⁰, but it’s also obviously 1.

The argument for 0! is basically the same. 3! is 1x2x3, and to go to 2! you divide it by 3. You can go from 1! to 0! by dividing 1 by 1.

In both cases the only thing which is special about 1 is that any number divided by itself is 1, just like any number subtracted from itself is 0

It’s a very capitalist way of thinking about the problem, but what “negative prices” actually means in this case is that the grid is over-energised. That’s a genuine engineering issue which would take considerable effort to deal with without exploding transformers or setting fire to power stations