can I ask kind of stupid question? Does the time slow down for the person going the speed of light, or does time slow down for those relative to this person? In other words, if you are in a mechanism that can travel the speed of light, you will still be in the mechanism for 4.36 years; but to those on earth, you got here just moments after you left.
If you slowed down time for yourself, you would have to become immobile, in a frozen state, its not like your body would get 4.36 years for free just because your body was traveling the speed of light (your heart should still beat the same amount of beats for those 4.36 years going the speed of light as it would have going 60 mpg.
But again, we're still at the same point: no UFO's unless the speed of light. And I don't think time slows down for he person going the speed of light, I think time slows down for those relative to the travel.
This thread is insane, but your question is valid. I think I understand what you're asking, and you're wrong. Time slows down for the person in the space ship.
So suppose you get on a spaceship tomorrow that gets very close to the speed of light. You take a trip to, say, Alpha Centauri and back. Your best friend who you left on Earth, waits twenty-five years for you to come home and throws a party - but for you, it's only been about a year. So he's lost all his hair and you start dating his grandkid.
You, on the space ship, would eat and drink and age in a seemingly normal rate. It's only in comparison to the rest of the universe that you'd be slowed down. Does that make sense?