Quantum Mechanics

Classically, for a particle, you have a very clear notion of where it is its location and how fast it's moving. Quantum mechanics a little bit different from that. The whole spookiness of quantum mechanics is that to define what you mean by quantum mechanics, you have to use words like observation and measurement. That was never true in classical mechanics. You just measure whatever you want. It was perfectly trivial and straightforward. And if you extend that to gravity, you're saying that what we call the geometry of space time, or things like location in space, they don't exist. They are some approximation that you get at the classical level in the right circumstances. So i don't