The strangeness of the microscopic world, aka the quantum world, is best captured in a famous experiment known as The Double Slit Experiment. It is a simple experiment that shows how our intuitive ideas of matter and reality don’t hold anymore. This experiment shows the essence of quantum mechanics and why it is so strange and counter-intuitive. The following video is the best and the most accurate description of this experiment I have found so far. I hope you enjoy it.