Theories are by definition only opinions. Not at all proven by facts, in fact.
Please make note that by
definition. and in fact it is impossible to ever prove any theory,
However' a theory, say ToE is " proven beyond all
reasonable doubt".
Why? Because all ( 100%) of relevant facts / data
are consistent with the theory. Zero against.
Doubt is therefore UNreasonable.
kinda like some dope on the jury after the prosecution
offers videotape, witnesses, fingerprints, motive, means,
stacks of evidence to take decades to present it all.
The defense cannot present one excuse, alibi, not one fact in defense.
The hold out on the jury keeps talking conspiracy
computer simulation, miracle...
Unreasonable doubt.
Your doubt will be considered reasonable IF you
can offer one fact contrary to ToE.