We don't violate the 2nd law of thermodynamics. We're still increasing entropy, but we're processing so much fuel that the equations are still balanced when we locally increase order.

Comparing lifespan to the bonds of a molecule is also pretty cringey. :-/

Obligatory link to Aubrey de Grey: https://www.ted.com/talks/aubrey_de_grey_says_we_can_avoid_a...