Back to future, the way to do it (回到未來)

that day when i go out lunch with colleagues, we had arrived to this topic. Interestingly, not many really know the physics behind to achive it. Some simply just say, if you can travel faster than speed of light, you will able to travel to the future, but i rebuke ain't that will make you travel to the past instead of the future. Thus, right after back from lunch, i went ahead to wiki it, and found the following to share it here:
Time Travel

It suggests that to travel to future, you need to:
This form of "travel into the future" is theoretically allowed using the following methods:[12]

Using time dilation under the Theory of Special Relativity, for instance:
Traveling at almost the speed of light to a distant star, then slowing down, turning around, and traveling at almost the speed of light back to Earth[30] (see the Twin paradox)
Orbiting Earth for long periods of time (practical, but insignificant);
Using time dilation under the Theory of General Relativity, for instance:
Residing inside of a hollow, high-mass object;
Residing just outside of the event horizon of a black hole

To complement, travel to the past require you:
Time travel to the past is theoretically allowed using the following methods:[12]

Traveling faster than the speed of light
The use of cosmic strings and black holes
Wormholes and Alcubierre 'warp' drive