[ExI] How to survive forever

[Anders Sandberg]

Well, the separation of gravitationally bound systems might be sad, but 
it is better than the w<-1 dark energy powered rip where eventually even 
protons get ripped apart. Fortunately the latter is likely not going to 
happen, but we will eventually be stranded in the galactic superclusters 
we are living in.

Now, a supercluster is somewhat limited, but it is still plenty of room 
for love, thinking and backups. The main problem is likely that 
temperature never gets below  T_min=10^-19 K due to horizon radiation, 
and that forces a finite amount of possible computation. Still, that is 
M_cluster/(kT_min ln(2)) irreversible computations (including error 
corrections) - plus a large number of reversible computations.

-- 
Anders Sandberg,
Future of Humanity Institute
Philosophy Faculty of Oxford University