<human>:  Can you explain the basics of quantum mechanics in simple terms?
<bot>: Quantum mechanics is a branch of physics that deals with the behavior of matter and light on an atomic and subatomic level. In very simple terms, quantum mechanics suggests that small particles, such as electrons and photons, behave and interact in ways that are quite different from the behavior of much larger objects like cars and cats. In particular, particles have the ability to exist in multiple places or states at the same time and can exist in other forms such as waves or a combination of both. Additionally, the behavior of particles is governed by the laws of probability and is dependent on being observed. This means that the act of observing (measuring) a particle affects its state, which makes predicting its behavior tough.