This paper provides a great framework of how future could be outlined –

The diagram in a way indicates how hard it is to develop imaginative stuff that people wants. To an extreme, “Possible” is a layer for anything human brains can foresight. And “Preferable” isn’t about a layer, but an overlap of part of probable, part of possible, and majorly probable. Falling onto this area isn’t easy given the full volume of the sphere.