

Using prison slave labour for firefighting is literally the dumbest shit I’ve ever heard even ignoring all the ethical issues. You know who I don’t want in charge of saving my life from a fire? Someone who’s being forced to do it. Because that person probably won’t try very hard.
Then it wouldn’t be reasonable to assume the US would collapse right at the average (mean) though. If the majority of empires collapsed at a certain age (the mode) it would be different, but the mean tells you very little about when any particular empire will collapse.
The mean number of children per household is a decimal, that doesn’t mean any households have partial children.