Do you know whether we live in a computer simulation?

If we do, well it would seem trivially possible for our simulators to provide us with an afterlife if they wished–and we honestly could have no idea what they might wish.

If you claim to know we don't live in a computer simulation, or that if we do, our simulators would be unlikely to grant us an afterlife–how do you know that?

P(we live in a computer simulation) ~= 0.5

P(there is an afterlife|we live in a computer simulation) ~= 0.5

Therefore, P(there is an afterlife) >= 0.25 even if we assume P(there is an afterlife|we don't live in a computer simulation) = 0.0 (which is itself highly debatable)