An other-worldly market for goods would increase demand for exports and prop up the economy, some Keynesians
suggest.
It has been suggested by some Keynesians that space aliens would solve economic problems because that would allow this world to run an aggregate current account surplus, something that is impossible without life on other planets. The problem is that (intelligent) space aliens might not exist, and even if they do exist they may not know of us, and even if they exist and know of us they seem to think (if they exist and know of us, given the fact that we're not being contacted) that it would be impossible or inappropriate to openly contact us.
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