T-Mac

I wonder what lasers are actually capapble of doing, i mean we`ve all seen the movies, where they cut holes inside thick metal doors with a laser and blow things up using a laser. How much of it is true?

if watching our past is theoretically (yes, it`s impossible, in know, but still, it`s a theory) possible, would it somehow be possible to watch our future too? i mean like the same kinda "impossible-but still cool to think" way.

Imagine if traveling faster than the speed of light would be possible. Then it would be quite awesome to take an extremely powerful telescope, travel into the space faster than the light does, and look back on earth with that telescope. Then we should see everything there was in the past, depending on how fast we were travelling, and how far. Wouldn´t it be cool, to see the dinosaurs, witness the dawn of man and watch the birth of the first civilizations...