Board Thread:General Discussion/@comment-32182236-20190716003715/@comment-32182236-20190716235729

Zenoflee wrote: https://vignette.wikia.nocookie.net/undertale/images/9/96/MttClap.gif/revision/latest?cb=20151103095056

Maybe you start to understand the meaning of possibility...

(The deep meaning of "2") ...Part 2 is about logic, not possibility.

And I'd say tri-state logic is the best kind here-2 possibiltis simply aren't enough.

Sometimes, a statement is actually neither true or false at the moment.

In quantum mechanics, the position of a particle is not fully defined until measurement. The same is true for quantum spin, on at least one of the three axes of measurement.

So, what if I made a proposition, prior to measurement, that a particle will be observed to be spin +1 on axis 3?

Upon measurement, it is equally likely for it to be spin +1 and spin -1.

So we can't say that its spin has been defined. Thus, the truth value of the proposition also has not been defined. It's neither true nor false (or perhaps it is both true and false?). Once measurement is made, the spin collapses into a definite state, and thus, so does the truth value of the proposition.

So there's a third truth-value:One that simply represents an undefined truth value. It can then collapse into either true or false.