Maybe a Dyson sphere consisting of a cloud of self-replicating nanomachines works better that a planet with biological organisms. But remember, whatever one might think from reading lots of posts on lesswrong, that’s not actually a proven technology, whereas biology is (although “uplifting” isn’t).
One issue is robustness to occasional catastrophes. If I may reference another work of fiction, there’s The Outcasts of Heaven Belt, by Joan Vinge.
Maybe a Dyson sphere consisting of a cloud of self-replicating nanomachines works better that a planet with biological organisms. But remember, whatever one might think from reading lots of posts on lesswrong, that’s not actually a proven technology, whereas biology is (although “uplifting” isn’t).
One issue is robustness to occasional catastrophes. If I may reference another work of fiction, there’s The Outcasts of Heaven Belt, by Joan Vinge.