via Kenneth Udut:
   Yeah. It's marketing. Everything that's supposed to be "weird"
   about Quantum mechanics I learned on my own in high school.
   Didn't seem weird to be then. Definitely doesn't now. Even
   without going through the math, the 'gist' of the mechanisms of
   it works perfectly fine in my brain. Whenever I hear someone on
   TV or selling a book talking about how "weird it is", I cringe.
   == via: Andrei Patrascu ha, as I followed the articles quite
   some time already I can tell you what it is usually claimed to
   be "mysterious" and why it's not... 1. they miss the fact that
   quantum mechanics generates probabilities as answers and deals
   with statistical results, quantum states are generally states of
   maximal knowledge about the system, not states of the system 2.
   They miss the fact that measurement updates the knowledge about
   the system, they claim it's some sort of "physical transition of
   our mind" or some other mystical artifacts... 3. They don't
   understand that the intermediate states in our calculation are
   not physical states, they call this "realism" or "non-realism"
   accordingly, meaning, they think a quantum state, i.e. a
   probabilistic statement about the system, must somehow
   correspond to a real physical state, my general example is the
   statement "give me 2 or 3 eggs" which cannot be answered by a
   "mysterious" physical state of "2 or 3 eggs" or some even more
   mysterious physical state of "2 and 3 eggs" at the same time...
   4. They wonder why they never measure an object in a superposed
   state... my answer to that: you might, after enough Vodka... my
   more serious answer to this question is again, the superposed
   quantum states are states of knowledge 5. They usually say they
   measure one thing, act as if they did measure that thing but in
   fact measure some other thing and wrongly infer some information
   about what they said they would measure in the first place...
   these are the "weak measurements" 6. They mistreat the
   Heisenberg uncertainty relations in many ways, because they
   learned for some (very wrong) reason that "measurement is the
   cause of imprecision in quantum mechanics"... This is not so,
   the algebraic nature of the observables and the way quantum
   mechanics works are the reason for such an uncertainty 7. They
   mistreat the double slit experiment by putting all things
   between the coherent sources and the detectors, resulting in
   either measuring the momentum and not admitting it or measuring
   the position and not admitting it, resulting in presence/absence
   of interference patterns... === my response:
   I love how clearly you laid it out here. Yup, that has exactly
   been my thoughts: I LOVE how you describe super-imposed. "After
   enough vodka! they might!" #3, #6 and especially #2 and #7 get
   me annoyed most of all. It felt like seeing my mind in your
   list. I detest when Quantum mechanics is turned into "woo" by
   people who are supposed to be Scientists. I don't care if the
   general public does it: They can get "woo" all they like. It's
   when scientists do it that gets my ire.