there are also many species on the ocean floor that do not get their energy from the sun, but from vents of heat from the earth. maybe they dont photosynthesise, they use heat instead
> The spice allows creatures to fold spacetime...
Doesn't seems so fantastical now, does it?
Folding spacetime requires incredible amounts of energy. I still think that's the bigger deal.
That's unclear. It could easily release incredible amounts of energy, but require very little.
but specifics apart, the main point is just because readers accept hyperspace and extrasensory perception as part of your fictional universe, doesn't mean they will not expect the laws of thermodynamics, or planetary ecology, or other related fields, to also be suspended.