Question

  • what is Quantum ?
  • why is it spooky ?
  • can a normal person understand it ?

I will try my best to understand and also explaining

what is the spooky thing about Quantum mechanics

As Feynman puts it

Quote

Things on a very small scale behave like nothing that you have any direct experience about.

Many brilliant physicist tried to compare(e.g electron is like a wave) or nice way of putting it is they try to visualize what it feel like to be a small sized electron for example. Electron don’t act like wave or particle or a rock or cloud.Atomic behaviour is so unlike ordinary experience. lumpiness

source

Feynman-lectures