Whilst Humphreys' model has time dilation caused only by gravity (per [[Albert Einstein|Einstein's]] [[General Theory of Relativity]]), Hartnett's model also takes into account time dilation caused by motion (God's expansion of the universe) (per Einstein's [[Special Theory of Relativity]]). | Whilst Humphreys' model has time dilation caused only by gravity (per [[Albert Einstein|Einstein's]] [[General Theory of Relativity]]), Hartnett's model also takes into account time dilation caused by motion (God's expansion of the universe) (per Einstein's [[Special Theory of Relativity]]). |