Its not a bigger leap because it is an alternative explanation to what already seems unreasonable.
It's unreasonable to admit that we do not understand how consciousness arises? By your reasoning, wouldn't any alternative explanation be equally valid to the soul hypothesis?
I don't think that an immesurable substance is magical. It simply doesn't have physical properties. Why can't such a substance exist?
I don't think immeasurable substances exist in any useful sense. There could be an infinite amount of undetectable spew all over the place, no reason to posit that any of it exists until we have some evidence for it.
Our concept of space is just an illusion anyway. And what is space made out of? Physical things can't exist out side of space? So what is space itself. How can space be physical? Maybe it is, I don't know. All I know, is that I THINK that space cannot be made out of any spatial material because it is the very medium by which physical things are manifested. But of course I could be wrong there.
Where is outside of space?
I don't even know that spacetime "exists," from my understanding (and I'm probably wrong, physics is not my fort) it's just a description of gravitational forces.
Edited by Chronos, : No reason given.