An expanding superintelligence sphere acts as a lightyears-wide optical lens, providing extremely redundant observations of far-off objects. This can be combined with superintelligent error-correction and image reconstruction. If you have multiple such superintelligences then you get even more angles. But yeah, I haven't done the actual calculations; it'd be super cool if someone else did them. On another note, about six months ago I spent a few days looking at the quantum information theory literature trying to figure out if AIs could coordinate to reverse the past; I think I have enough knowledge to pose it as a coherent question to someone with a lot of knowledge of reversible computing and QIT. I'd like to do that someday.