Mike Combs wrote:
I'm almost ready to expect space mirrors the size of states before
fusion reactors.

And even if practical fusion reactors come along...a mirror the size
of a state is simply a sheet of aluminum. On Earth, yeah, that's *way*
impractical. But 100 AU out... it's a snap. Maintenance would be
relatively easy, either with robots or guys in suits. Of course, this
would be a low-g operation...