Comment Re:microwave bright [Re:Oh good lord.] (Score 1) 225
Well, the other way of doing it other than increasing the size of the Dyson sphere would be to build it around a smaller star that emits less radiation. It may not be a bad idea if you're in it for the long haul, as the smallest stars will burn for a thousand times longer than a star like ours, meaning you get the best return on your investment of building the Dyson sphere in the first place. Of course, you then have the problem that less radiation is hitting the surface of the inside of the sphere. That can be solved by, of course, building it smaller which means it will take less material (another plus), but then you're back to emitting infrared again.