Billions of additional years is quite some time to find a solution though.

You can’t find a solution to the actual laws of physics. Our understanding may be wrong, but that’s different.

Unfortunately what humanity always found out is that physics always progress. That means that we are always at mercy of uknown physics laws or put it simply: Till now humanity had a lot of luck and everyone luck at some point ends.

There's a big difference between dying because the negentropy finally ran out, after billions of years in the height of life's power in thr universe, and being snuffed out by something as banal as biological malfunction after the blink of an eye.

If nothing else, if I got bored after x number of centuries, I'd want any useful/meaningful memories of mine to be indexed and saved on hyper-wikipedia rather than just be burned because a piece of meat rotted.

Ending death would require us to be perfect beings. We are not. Death is part of the solution to the problem of evolutionary adaptability. We are born, we mate, we die, the cycle continues with our children. If circumstances change, our genes can too but we cannot. As much as we want to stick around forever, I don't think our biology does...

Why should we care what our genes want?

Also, as tech advances, the need for slow recombination goes away, as people can alter their genes and body on the fly. Supersede natural evolution, rather than bowing to it.