You seem to be overlooking something. It may very well be that
a) living in space is inherently more difficult (read: energy-inefficient) that on earth
b) we are already using up earths ressources must faster than they renew
c) it is not in the least guaranteed that we can find energy sources that are significantly more efficient or opening new sources than those that we already have
d) in particular it may be quite impossible to use significant fractions of the energy of the stars
Just in case this comes across as technological pessimism: It isn’t. I’m very well for technological progress. We will need all the progress we can get to optimize efficiency because if we don’t start soon we my have lost more than we can regain later. It may not be true, but somebody has to go that way too. When so8res—knowing that he may be wrong goes int the compartment of (U)FAI, then I on the other hand go into efficiency—also knowing that I may be wrong.
You seem to be overlooking something. It may very well be that
a) living in space is inherently more difficult (read: energy-inefficient) that on earth
b) we are already using up earths ressources must faster than they renew
c) it is not in the least guaranteed that we can find energy sources that are significantly more efficient or opening new sources than those that we already have
d) in particular it may be quite impossible to use significant fractions of the energy of the stars
Just in case this comes across as technological pessimism: It isn’t. I’m very well for technological progress. We will need all the progress we can get to optimize efficiency because if we don’t start soon we my have lost more than we can regain later. It may not be true, but somebody has to go that way too. When so8res—knowing that he may be wrong goes int the compartment of (U)FAI, then I on the other hand go into efficiency—also knowing that I may be wrong.