If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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Strictly economic? There are none.
At least a tiny bit plausible? The same sort of legislation that made renewable energy profitable in some countries. That is, huge taxes on earthbound industry and big subsidies for spacebound.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.