As a matter of fact, it has been recently discovered that there are people who have a different "consciousness:life functions" ratio than the normal 1:9. Somebody in Florida (I think) had a 15:85. I'll look for the article. And yes, gravity is a theory. But a theory doesn't just mean "imaginary." A theory, in science, is "a supposition or a system of ideas intended to explain something, esp. one based on general principles independent of the thing to be explained or a set of principles on which the practice of an activity is based." It's just a set of laws. Einstein explained gravity as a force that acts in the fourth dimension, basically. There's a big rock placed on the suspended cloth that is our universe. Place a marble on that cloth, and it will roll downwards towards the center of gravity of the rock that is pulling down on that cloth. The same thing goes for the planets being pulled towards the sun, only one dimension higher (added) with the law of conservation of angular momentum applied.* If we had a way to travel through the fourth dimension, space-time would be frozen from our perspective. If one were to measure the discrepancies of space-time itself, it would be evident that there can be individual differences in multiple timelines caused by changes in time itself. I'm sure you've heard of the Multiverse Theory (or at least seen it on Family Guy lol) but there are some well-respected physicists who suspect that the Multiverse may contain an independent time with a will of its own.
*There is another theory stating that because of waves/discrepancies in space-time, the planets think they are on a straight path to the sun, but the directions are all messed up because of the ever-changing nature of the universe itself. Although within said theory the waves would have to be constant then to keep the planets from eventually crashing into the sun or each other on their orbits (or at least constantly changing in relation to the current speed, direction, and location relative to the sun of each planet in the entire universe) and therefore the theory itself would be contradictory to the Multiverse; not that the Multiverse is generally accepted itself, but I've always had a thing for it.