PROFESSOR: All right.
So effectively we'll start off by talking
about why people think that time travel is not possible,
all the supposed "theoretical" experiments that
proved that it's not possible.
And then we'll explore a little bit more
into, like, what's the definition of time travel,
because we can talk about time traveling, like we're traveling
through time right now, it's just
at, like, a pace of one second per second.
So we can talk about time dilation
and explore how we can travel at periods of maybe seven
seconds per second.
And then after that, we go a little more in-depth
in a bit more layman terms of how time dilation works.
And then we ask, like, so if we can travel forward in time,
can we travel backward in time?
And that brings in the whole concept
of, like, how you need more-- when you increase
the speed of an object, the mass of the object increases,
and then you also require more energy.
And when you put in more energy, you may not necessarily
increase the speed, and therefore it's
still a big question whether time travel is actually
really possible.