Even at projected SpaceX lift prices of $1000/lb access to space is still prohibitively expensive. The Earth is big and a big mirror would be needed: millions o

Even at projected SpaceX lift prices of $1000/lb access to space is still prohibitively expensive. The Earth is big and a big mirror would be needed: millions of tonnes size range. Not only that but it would have to be delivered to the L1 Lagrange point, SpaceX prices are for lift to LEO only. https://en.wikipedia.org/wiki/Space_sunshade https://en.wikipedia.org/wiki/Space_sunshade Conceptually it would work fine, economics are a problem.