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I believe, much before those timescales humans would have become a Type 2 or Type 3 civilisation.
by pankajdoharey 5y ago
I believe, much before those timescales humans would have become a Type 2 or Type 3 civilisation.
- Retric 5y agoA sunshade is almost feasible using current technology, though it would have some negative impacts. Solar Cruiser is a 1,672 m2 solar sail being sent to L1 for 65 million. Which is of course nowhere close to cost effective for lowering global temperatures, but the basic components are there.
- sxp 5y agoIn Accelerando [1], humanity becomes a Type II civilization and builds a Matrioshka swarm. But it shines sunlight on Earth by opening up a hole in the swarm so that the sun is visible to Earth. That would allow harnessing almost all of the Sun's energy but would let Earth remain as a stable nature preserve for nostalgia purposes. [1] http://www.antipope.org/charlie/blog-static/fiction/accelerando/accelerando-intro.html http://www.antipope.org/charlie/blog-static/fiction/accelera...