or we'll have failed to make it through the great filter and all be long extinct.
We have the technology, just not the logistics.
Orbit around... what, exactly?
The sun, just, from further away
Or modify the sun.
Oh please, we're just getting past this shared mutable thing.
The carbon cycle will end in only 600 million years due to the increasing brightness of the sun if you want a closer end date for life as we know it on earth
The oceans will already start to evaporate in a billion years.