There is no time travel and time machine,
because the "time" is just a human fabrication
What is this "Time travel
"? Well, Time travel
is just a concept
of moving between different points in time (for example from 2014 to 3478 or to 1738 and so on) in a manner analogous to moving between different points in space (for example from China to Canada or to Indonesia and so on).
And what is this "Time machine
"? This is the theoretical
invention, which some believe will be able to "transport" you from "one time" to "another time". Now let me tell you why all these "things" are just impossible:1.
There is no such thing as physical/material/substantial time. The time is ONLY a measure
. It measures the motion of the things (for instance - the motion of the Sun, the motion of the Moon, the motion of the sand, etc.) That's why there are different calendars -- Solar calendar, Lunar calendar; there are different clocks too -- sundial, candle clock, water clock(clepsydra), sand clock, etc.2.
As far as the time (century, year, month, week, hour, minute, second, etc.) is just a measure of the motion of the matter (Sun, Moon, water, sand, Earth's rotation, etc.), such thing as "Time machine" or "Time travel" is just impossible, because you can't travel in a measure.
The past is something that happened, i.e. it's gone, it's already non-existing. The future is something that may happen (or not), i.e. it's something non-existing, too. The only existing one is the present. And you can't travel from the present to the past or from the present to the future, because you just can't travel from something existing to something non
-existing. It is the same about real traveling -- you may travel from Greece to England, because England exists, but you can't travel from Greece to Neverland
, because Neverland does not exist (it is a fictional place!)...
So, just forget about Time travel, Time machine, etc. They're all fictional and therefore -- impossible.