You'd have to speak with someone more qualified than me to answer those questions. I do know that the major breakthrough for developing QM was when Heisenberg used probability to cover the gaps of the things that couldn't be known. Since you can't measure an electron's location/velocity without obfuscating the other, you have to treat them as wave functions - a distribution of all the possible locations/velocities.
You know the alive/dead cat, from the cat's perspective, it's definitely one or the other, but from our perspective, since we can't know we have to treat it as both. People like to then say, "it's like the cat is both dead and alive" or "it's like the electron is in two places at once" which isn't really true. We just can't know any better than to say that for the purposes of moving forward.
The poker equivalent would be like you're on the river vrs a guy whose range is either the nuts or air and someone saying, "it's like he has the nuts and air!"
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