YEN-JIE LEE: Before people take 8.03 class, especially
my version, most of the students may
think uncertainty principle is actually completely related
to quantum mechanics.
So actually it is actually not the case.
Actually, uncertainty principle almost have nothing
to do with quantum mechanics.
It has to do with just the wave description we employ
when we describe the system.
So that's actually one of the big thing
which you will learn from 8.03.
The other thing which people will learn a lot more
is actually that before they come into the class,
they may think it's almost impossible to understand
infinitely number of coupled oscillators.
And it turns out that there is a very systematical way
you can actually make use of simple symmetry argument,
and that you can actually greatly simplify
complicated system, like infinity long system.
So it is actually not an impossible task,
and then everything can be actually understand,
using the concept of symmetry, which we introduce in 8.03.