Time ceases to exist at the speed of light

I've long been intrigued by the fact that we live in a 'time' bounded realm and that eternity (heaven or hell) is 'timeless'. What then occurs when we die? We are transported from a 'time' oriented existence to a timeless existence? maybe, maybe not.

Anyway thinking back to my college days in studying quantum physics, I remembered that quantum physicists study the nature of light. So then wouldn't time cease to exist if people could be transported at the speed of light?

At least in theory, this idea is reasonable. If a carousel were spinning so that the outer edge of the carousel moved at nearly the speed of light, then time would appear to slow down for people on the carousel. When the carousel riders looked out at the world spinning by, the days would pass very quickly. So the people on the carousel would age very slowly relative to people not on the carousel. This would create, essentially, a time machine that lets the passengers on the carousel travel into the future.

To create a time machine like this, you would really have to do it with a spacecraft moving in a straight line through space. The main problem then becomes accelerating the spacecraft. Let's say that you want to accelerate to a speed approaching that of the speed of light, and you are willing to subject the passengers to 2 Gs of force (twice the force of gravity -- people weighing 150 pounds would feel like they weigh 300 pounds) during the acceleration process. The passengers would have to endure that force for about half a year! Never mind the amount of fuel it would take to provide that acceleration...

In other words, no one is going to be traveling near the speed of light anytime soon. So back to earth and living in time.