Certainly has potential, although there has been some work that is skeptical, in the comments are many links worth reading - a mix of + and - considerations. Op

Certainly has potential, although there has been some work that is skeptical, in the comments are many links worth reading - a mix of + and - considerations. Operating at the far lagrange point it would have max immunity from eathly interference. One assumes such a device would be entirely robotic via satellite link and run by solar - which drag would be compensated.