Is time travel possible?

[cyberninja45]

Viper1 said:
Even if time travel were possible, there would be one major quirk in the works that would pretty much kill anything that did.

Any and all transitions from one time period to the next (such as what happens to us constantly anyway) is accompanied by a physical change in location. By that I mean the Earth is constantly moving along many different vectors - rotation on the axis, around the sun, around the galaxy and through space itself. In relative terms, we're moving about 850,000 miles per hour - nearly 400 km every second.

That means that wherever in time you travel to will be in the middle of a vast empty void millions to billions to miles away from Earth itself.

The only way to compensate for the change in location would be to have some means to not just travel in time but through space with incredible accuracy and at speeds well in excess of light. Unfortunately you'd also attain infinite mass and turn into a black hole thereby destroying Earth upon arrival.

But if at somepoint we were actually able to invent a time travelling machine I suppose we would also have the technology to calculate the coordinates of the the earth in space at that particular point in time. It should be an easy hurdle to over come.