"So we might say space and time are different for different people undergoing different rates of acceleration. So how can space and time have any basis in physical reality, when they are the product of a person's point of view; when what they are depends on the consciousness who is measuring them; when they differ when seen from different perspectives? Doesn't it make sense to think of space and time as a product of consciousness reading the environment?" Damn, this is a very good point.
"We know space and time can speed up, slow down, bend or stretch. So just what the hell are they then? Just what is it that our 5 body senses read as space and time?
How can time speed up, slow down, bend or stretch? How can space speed up or slow down? Were you referring to the expansion of space? Furthermore, how can space bend?