Why wait for proof when you can intuit or at least deduce?
The proof will come after the mistake is made.
I don’t care if you assume, intuit or deduce.
Once you make a claim or theory, it’s up to you to prove you are correct. Anything else make you a bullshit artist.
You made the claim, prove it.
There are far more uncontrolled and uncontrollable unknowns outdoors than indoors starting with the weather.