Moving at the speed of light will you live forever?

Answer 1

Not exactly. The more accurate statement is that it'll take you forever

to figure out a way to move at the speed of light.

Another viewpoint: Einstein's Theory of Relativity states that time

appears to go more slowly as speed increases.

A material object such as a person (for example you) cannot reach the speed of light.

However, near the speed of light time would move very slowly.

So, you would live a very long time.

Unfortunately, all this time measurement is done by "stationary" observers.

For the person travelling near the speed of light, time seems to pass normally.

So, you would age at the normal rate as far as you were concerned.

Incidentally, this question leads on to the "Twins Paradox" one of the most famous confusing ideas about Relativity Theory.