[skybrian]

That's just confusion about discount rates.

Money in the future is worth less than money in the present, so an infinite sequence can have a finite sum when it's priced in today's money.

[karpierz]

That is true, but the pertinent question is: how much less?

If the world is ending tomorrow, then much less. If we discover immortality tomorrow, then much more.

[joosters]

How does immortality affect the discount rate? Just because you or I will die, doesn't stop our heirs (or companies) from collecting income from assets.

I'd suggest that discovering immortality might have the opposite effect, it would only bring more uncertainty about the future.

[karpierz]

Sure, I'm not trying to argue about how to appropriately price the rate; just that it's variable.