Time Travel/Time Freezer

[The Unknown Guru]

With a time machine, I would go back to the 60s, then live through them, then I would go to the 70s and live through them, then i would go to Japan's Edo Period and live through it.

With a time freezer, I would actually have time to think about things before I say them. That would have a positive impact on my life.

EDIT:

There's nothing in the laws of physics to prevent time travel.

There isn't anything to prevent going forward, but you can't go backward. To go back in time, you would have to exceed the speed of light, which is clearly impossible.

However, a "time portal" can be created between two eras. It goes something like this:

In one time period, take one end of a stabilized wormhole (just assume it's possible) and load it onto an intergalactic starship capable of going, say, 98% as fast as light. Leave the other end on Earth. Have that ship take off, fly around at full speed for a few years, and land on Earth again. Because the end of the wormhole on the ship was flying at 98% of hte speed of light for a few years, time slowed down for it, and the ship carrying it would have landed probably about 1,000 years later in Earth time. However, the end of the wormhole that stayed on Earth would've kept going in Earth time, making it possible to travel between the era the ship took off in and the era the ship landed in by going through the wormhole.

Of course, this can't take you farther back in time than when the "portal" was created.