Stone Cold Steve Jobs

Prove something exist..... Well one easy way is if you can touch it see it eat it taste it feel it... Think of it? no thats an idea, same as a theory but in time it will be until another genius adds up something to that theory or a test is made for it. Its like theories help improve the aircraft, practice improves it.

@Kujamih

You can't truly prove something exists by touching it, seeing it, tasting it, hearing it or smelling it. The reason for this is that many people hallucinate touch, sight, taste, hearing and smell when there's nothing there at all. There's always the technical possibility that you're hallucinating everything you sense, and thus this method of 'proof' is unsatisfactory.

That aside, mainstream scientific theories aren't just ideas, they're ideas rigorously tested through constant and varied experiments over the course of the last fifty-odd years. These experiments are direct extensions of the touch-taste-smell-etc. criteria you use for proof, building on the existing touch-taste-smell-etc. knowledge that humanity has built up over the course of millennia, which makes them valid proofs by your own standards. 

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 the bits with the odd lowercase-y lookalike symbol describe the electromagnetic field,

I know that one. It's slowly faded partially out of memory, but I used to be quite familiar with Quantum Anatomy. It's a Greek Letter.... I want to say Epsilon... but that can't be.... Yepsilon?~

 ?ytilauD@ ,gniyas er'uoy tahw ,yllacisab oS : Is that, if everything went perfectly to plan, this would be a perfect representation of what we know of our imperfect reality? I suppose it can be said that imperfection is a defining characteristic of any reality. If it were perfect, it wouldn't require explanation.

But observable traits can be treated as concrete fact, yes? If one trait is claimed in one trial, and can be backed up as reoccurring in further experimentation trials, that can be further used as deignable traits in anything mathematical. If one subject says one object has a certain mass, and so do further subjects, then that can be used in any math defining it.