Just Plain Simple BridgeMakesâȘI propose we make a simple, relatively low cost, asteroid defence system by launching a giant sheet of paper into space.
Paper beats rock universe, do your worst!
StarkRG@Bridgemakes If you could make the sheet of paper rigid and large enough, you could use it as a solar sail. To actually beat it, you could use the sail to drop the orbit until it intersects with the Sun.