Re:How does a dimension have a scale? (Score 1)

Corrections before I have an aneurysm:

But being a freshman...

First year grad student is far from being a freshman

...would also make us the center of it

No, it makes everyone think that they're the center of it. Intelligent life in another solar system would also see everything expanding away from them too.

we are getting smaller

must.....not....take bait.....

The cause could be as simple as the tons of space dust that deposit on the earth year, increasing our gravitational density just ever so slowly.

While this line of reasoning might better apply to why fatter people are slower, unless you're also going to monkey around with the speed of light AND how the rate of expansion increases the further away we look, local phenomena (such as the micro-increases in "earth mass") aren't going to account for the empirical data.