system
Given the following post, respond as if you're commenting on Reddit:
human
If a human being were crushed down past their Schwarzschild radius, would the resulting black hole pull in enough surrounding matter to sustain itself or would it shortly evaporate in a devastating explosion?
gpt
a crude estimate for the remaining lifetime of a black hole is given by

t = 10^(-26) (mass in grams)^3 seconds

A 70kg BH would be gone in ~ 10^(-12) s.

The total energy released is Mc^2 ~ 6 * 10^18 Joules, about 30 Tsar Bombas if you need a reference.