5 I clearly understand that jokes with time are dangerous. But there are two sides of the coin in every invention and even in every thing in the world. When you think that a glass is half-empty - NO! - it's quite half-fulled. The same thing happens with cloning for example. The problem is that people try to be in the role of God. As for changing something in my past, I think a lot of people would like to do it.
1 Why do you want to have a Time-Machine?
Do you want to change something in your past?
Do you understand that Jokes with time are very dangerous?