[ackydoodles]

The numbers only become science-fictiony large if you want to go fast. Why not go slowly?

The only reason humanity is obsessed with speed is because of our short life spans, but that is a solvable problem.

All we have to do is to eliminate aging and it's associated diseases, and then we can take our time going to the stars.

The most difficult part may be accepting limits upon our appetites, so that we are not driven to consume everything and we can live sustainably. This is an issue aboard a starship, where we will have to take a chill pill on consumption of resources, just as it is an issue on starship Earth.

[kjs3]

Ignoring the whole "we'll just cure mortality...how hard can it be?", people tend to go batshit crazy after spending a couple of months in confined conditions looking at the same faces day after day. Think they're going to do better mentally when they look forward to the same for a 100 years.

[userulluipeste]

Then we have to address this newly pinpointed problem - to somehow make people not „go batshit crazy”. Maybe practicing some kind of meditation? I admit that it's not as exciting as some technical overhaul we all expect, but still...