Oh also she had a bit of brainfart explaining the electron thing, you can't exactly pinpoint their place AND impulse at the same time, which means the more precisely you try to determine their exact position, you can't observe where they're going, and vice versa, meaning you can never truly predict where they'll be, cause you'd need to know where they are AND where they're going for that. And this isn't some prank on the instruments used to observe them, this is a fundamental principle of the particles, meaning they are technically not "fixed" in one place, they could be anywhere, with a probability bubble. What this essentially means is, the electron belonging to an atom on earth, could theoretically just randomly be on fucking mars, with a probability so astronomically low that it has no realistic effect on real life. But what this does mean is the model you learn in school about how electrons circle around the core of an atom in layers, isn't neccesarily true, they are technically "anywhere" in the bubble all at once and you can never pinpoint where exactly that is until the system is disrupted by, say, measuring their impact on something.