Do the math — a moderately large asteroid is plenty, if we assume a statite system at around 0.77 g/m^2 and distance from the sun of 0.3 AU. It is about 2 x 10^22 grams, which is 2 x 10^19 kilograms. The asteroid Pallas (second largest after Ceres) is about ten times that mass. (Graphene is strong enough that you can…

These are just idiots running at the mouth. Dyson spheres are just big solar collectors, they aren't habitable solid surfaces (unless you were, for some reason, to go to the trouble to engineer one, in which case you would probably use utility fog instead of gravity and stabilize everything with various mechanical…