The key of our success as species is not as much our material culture as our ability to imagine things. Historian Yuval Harari argues that thanks to fictitious entities such as gods or nations we have been able to cooperate on a large scale, produce a formidable material culture and become the kings of the earth.
But if we can imagine such things is because they are in some way out there (out of space-time) or inside (within our mind). In any case, to imagine them amounts to instantiate them and get them to yield effects. This leads us to accept that, in addition to God (in fact, of all gods and demons), there are also fairies, gnomes, and pajaritos preñados, though obviously not in the realm of our physical world. Is there anyone who denies the existence of financial economy or madridism sticking to its apparent immateriality?…
This is Patrick Harpur’s approach in his book Daimonic Reality: A Field Guide to the Otherworld. Half a century ago, on the same line, Carl Jung already pointed out in Flying Saucers: A Modern Myth of Things Seen in the Skies that the stories of flying saucers were not false but true though not literally: UFOS would be projections of the collective unconscious which lies in the depths of the human psyche, as well as dreams. And how many dreams or hallucinations (for example, those of Joan of Arc) will not have driven to act and decisively mark the evolution of the world!
Once taken such an expanded vision of reality (because, I repeat, unicorns, green antenna martians, Thor, and Marian apparitions would be real in its realm, in the same way as Miss Scarlet O’Hara, Professor Walter White, The Toxic Avenger, and Mario Bros), we should not rule out the possibility that our physical world, which seems so tangible to us, could be the result of some unimaginable (at least for our rudimentary minds) higher order imagination.
As Spanish physicist Pseudópodo writes in a magnificent entry in his blog, “nobody lives in the whole reality. The problem is when someone thinks that his subspace is the only reality and insists on denying dimensions to the world. (…) The lesson that teaches me science is that there are more things in heaven and earth than our philosophy can dream”.