That goes back to Tipler. Tipler went further though, he argued that if the universe ends in a big crunch there's a way around the Landauer limit that allows f

That goes back to Tipler. Tipler went further though, he argued that if the universe ends in a big crunch there's a way around the Landauer limit that allows for infinite computation in finite time - the universe would, in a sense, never have to end. But since then it looks like dark energy means never ending expansion. Doh.