It's not a math exercise. The author poses a question that is in the realm of psychology or neuropsychology or something like that, and then jumps straight into solving it with pure math, picking premises out from thin air.
The premises are obviously wrong, like assuming an infinitely long lived person, which means the answers arrived at will have no correlation with anything factual. You can't fix that with any sort of refinement. To be refinable would require it to be coarsely correct to begin with.
The premises are obviously wrong, like assuming an infinitely long lived person, which means the answers arrived at will have no correlation with anything factual. You can't fix that with any sort of refinement. To be refinable would require it to be coarsely correct to begin with.