They study the physical aspects, and only the ones they can find.
That's called science. It's not belief and it's not conjecture, the knowledge we have about the origins of man is from the field science.
Tom, suggest that "man" originated from a subjective reality.
Is there a reference for this? Humans are an avatar that evolved on this planet. It could have been dolphins or whales or some other species, but it was humans that climbed to the top of the heap.
that humans originates from "a higher spiritual dimension of reality", which would be more in line with Toms work than that we evolved from apes.
Consciousness, not humans, are in a spiritual dimension called the LCS. But in fact even the VRs are a part of the LCS. Humans are only avatars nothing more. And one more time... we did not evolve from apes.
"Humans and monkeys are both primates. But humans are not descended from monkeys or any other primate living today. We do share a common ape ancestor with chimpanzees. It lived between 8 and 6 million years ago. But humans and chimpanzees evolved differently from that same ancestor. All apes and monkeys share a more distant relative, which lived about 25 million years ago. Human evolution, like evolution in other species, did not proceed in a straight line. Instead, a diversity of species diverged from common ancestors, like branches on a bush. Our species, Homo sapiens, is the only survivor. But there were many times in the past when several early human species lived at the same time."
http://humanorigins.si.edu/education/fr ... -questions