Time Travel:

This is one of the biggest dreams of the man kind. In every century, man talk about time travel, some people work on it. Some people try it and at the end, they end up with nothing. The basic logic behind time travel is, you have to travel with a speed equal to speed of light, or it will be better if you go a little bit more.
What would happen when you travel at the speed of light? It is simple. "You" will become as energy. Say, a light energy. Well; what’s' wrong with that? Then you will have no eyes, no ears, no hands and no you. Not only you, the things travel with you; that is, the time machine, your shoes, family photo, everything will turn into energy.
All your family can see is a light spark (like a lightning in the sky) and everything in you gets disappeared. Till now, all the researches focus about the time travel. But what about reverse time travel? How will you return from 2000 B.C.? I don't think we can survive there even with the provision of food and shelter. Who will live a life without all the fancy we have today? Will you? I won't.