Quantum physics is the study of things that are too weird to be real.
We're talking about particles that can be in two places at once, and waves that are also particles, and particles that are also waves.
It's like trying to describe the plot of a David Lynch film, but with fewer cows.
Quantum physics is also responsible for the weirdness of the universe, which is just a fancy way of saying that it's really, really weird.
We're talking about the Heisenberg Uncertainty principle, which basically says that you can't know something, and also, you can't not know something.
It's a real brain-twister, folks.