spoiler
The idea revolves heavily around the creation and deployment of several thin film-like silicon bubbles. The “space bubbles” as they refer to them, would be joined together like a raft. Once expanded in space it would be around the same size as Brazil. The bubbles would then provide an extra buffer against the harmful solar radiation that comes from the Sun.
:wut:
It's better than that: They want to put it at L1, which is unstable and requires constant corrections to remain in anyway.
100% this thing would either form the Earth's ring system or float off for millions of years until radiation ate it away.