Why does mass slow time?

[allcanadian]

If you see a fish in the water and throw a spear at it you will miss the fish because the fish was never where you aimed, the water distorted the image of the fish by bending light. This is an illusion, the fish was never where you believed it to be, the same thing occurs with curved space and mass slowing time----it's an illusion. What is it you will always find when these illusions occur? A change in density of the media, this is the same reason you see a mirage in the desert. Time is relative to the observer, like a slow moving train seen from a mountain top and a fast moving train seen near its tracks----they are the same train only the observer has changed. True understanding is having the knowledge to understand that what you are seeing or sensing is an illusion, please tell me you don't honestly believe time can speed up or slow down? Does this make any sense?

[madddann]

It does not... who invented time anyway? 
OK, but what about the astronauts "non" aging 'cause they are not exposed to gravity? So time and aging doesn't really have anything in common if the observation point is not the same. Isn't time just a measurement of earth's rotation - a frequency to rely on? So now if we take that relation point and move it to infinite high frequency, are we now going back to the future   

Dann

[JamesThomas]

I don't know why mass slows time. I just know that every time I walk past my wife's ass, I have to reset my watch. 

[PYRODIN123321]

HAAAAAAAAHHHAAAAA funny

[plato]

Magnetism and gravity are one and the same.

Mass alone is not enough to affect time. It needs the capability to warp the fabric of space and only magnetism can accomplish this. Just don't forget magnetism's mother,.. Electron.