For context, some numbers I saw estimated the implosion would take about 1ms, and it takes about 25ms for signals to travel from nerve endings to the brain.

So what you're saying is, there is a reliable means of death that is, in all likelihood, more humane than any practiced by states with capital punishment?

It's a good question, I was wondering the same. Do we even have any sort of artificial means for generating that kind of pressure? I suppose we could drop someone into a trash compactor, but it might be difficult to convince people that's more humane than a simple injection, even if it technically is.

Explosives.