Board Thread:Theories and Speculation/@comment-35622277-20180413051724/@comment-35622277-20180413094659

I have a theoretical explanation on why Kinshiki stated that the "Space Curvature" for Earth was "16" as well.

It's pretty much explained by Einstein's Theory of Relativity, where it states that the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present.

We know that chakra is a form of energy and therefore has mass, and therefore has rest-energy, according to the well-known equation

E = mc^2

Which becomes

E^2 = (mc^2)^2 + (pc)^2

In regards to Einstein's Theory of Relativity where E is mass-energy, m is the rest mass of the object in question, p is its momentum, and c is the speed of light within a vacuum.

Per the equivalence principle, we know that if spacetime can be "bent", it must be energy-momentum.

The equations that govern spacetime curvature indicate that the Einstein tensor Gμν  is proportional to the stress-energy tensor Tμν. The latter has numbers in regards to the density of mass-energy and momentum as well as their flux, and the former being a function of curvature.

Einstein tensor = constant * stress-energy tensor

The constant can be zero, there is nothing stated in theory that it can't be. However, we know that gravity exists.

The constant is then rewritten into

8 π G/c^4

With the full equation being

Gμν = 8 π G/c^4 * Tμν

According to this, the source of curvature can only be energy-momentum and nothing else.

Because the above equation implies the existence of Newtonian gravity, where Newton's constant is G, we know that G is not zero and thus the constant also isn't, and therefore spacetime is curved by stress-energy.

So because Chakra has mass-energy and momentum, and is therefore affected by gravity, the conclusion is that Chakra (and its density) does infact curve spacetime.

I'm assuming the Otsutsuki have a scale for this, hence the 16, with anything over 10 being abnormal according to Kinshiki. Earth probably has an abnormal abundance of chakra in comparison to other worlds, hence the abnormal curvature in spacetime.