system
Given the following post, respond as if you're commenting on Reddit:
human
If I had 100 atoms of a substance with a 10-day half-life, how does the trend continue once I'm 30 days in, where there should be 12.5 atoms left. Does half-life even apply at this level?

EDIT: Thanks for the explanations. I hadn't been aware that half-life was a statistical model, so it makes sense now.
gpt
There could be 12, could be 13, or any number from 0 to 100 with a varying probability given by the ~~Poisson~~ binomial distribution.

Continuous probability distributions apply in the limit of an infinite number of atoms, and Avogadro's number is in this limit.