It's a matter of opportunity cost. What do you have to give up, in order to have this miniscule chance? Which is most valuable:
- putting your kids through college for sure
- financially assisting your still living loved ones for sure
- paying for expensive life saving surgery for someone who can't afford it for sure
- investing in what amounts to a lottery ticket that pays out only in a tiny percentage of potential future universes
Even if I was completely disinterested in the fate of the rest of humanity, I think I'd still choose to go out with a bang now, for sure, than to throw my hard earned cash into a futile attempt to keep me fresh in the freezer.