"all we do is delay it by another number"
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 > 80
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 > 80
That said, it does seem even if we gain a mind-boggling level of energy manipulation, 10^20..10^40 years is a rough expectation for regular matter, as we know it, to continue to exist.