What is causing destructive interference in double slit experiment?

[berkeman]

Lordy. Thread closed temporarily for Moderation...

 

[Nugatory]

Which brings me to ask: How could someone prove their theory true as to what is going on?

You don’t. Physics is an empirical science, and empirical sciences don’t prove that theories are true - it can’t be done. All that we can do is show that our theory is consistent with all experimental evidence so far, and it is helpful if our theory also makes predictions that are different from those of other proposed theories - then we can test the predictions to reject one or the other.

So any proposed theory of what is going in on (the technical term for such theories is, as @phyzguy says above, “hidden variable theories”) must be consistent with all available observational and experimental evidence so far. In particular, it must be consistent with the observed violations of Bell’s inequalities - and I strongly encourage you to read up on that, Googling for “Bell’s Theorem” would be a good start.

 

[berkeman]

Thread will remain closed. Thanks all.