Oh, boy...
Hmm...
There's nothing in classical physics that says I don't have an undetectable dragon in my garage.
Without evidence, there's no reason to believe.
Which leads me to this...
The multiverse hypothesis (it doesn't rise to the level of theory) is unscientific. Science demands a little something called "falsifiability." As we're limited to observing what is in our universe, we aren't able to disprove (that is to falsify) that multiverses exist. Thus, it's not science.
Just like you can't disprove that I have an undetectable dragon in my garage. My claiming that I do is not, in fact, scientific.
(For the record, I don't actually believe I have an undetectable dragon in my garage. It's just a handy analogy.)
So, I don't believe there's more than one universe. There's absolutely zero substantive evidence that suggests such. There's conjecture and hypothesis - and not even really good hypotheses, 'cause they lack falsifiability.
If there's no way to disprove it, it's not science. Science has no opinion on the matter of a deity, for example. I can't prove God doesn't exist. As such, I don't really hold an opinion except to say there's no substantive evidence for such. There's conjecture.
Einstein's predictions were science because, had the star not appeared with the light lensed around our Sun, he'd have been proven wrong. He made predictions. If those predictions didn't come true, it was false.
How are you going to falsify a universe beyond what we can observe?
Well there is the simulation hypothesis that seems to line up with what we see in cosmic background radiation so that is testable and would suggest a possible multi verse. I will admit it isn't falsifiable and as such isn't hard science. I however wouldn't go so far as to completely throw away theoretical physics because it isn't falsifiable. I guess we have run into that impasse you and I have had in the past once again, belief in the possibility of the unprovable. At the end of the day I will always be a guy who has faith and is open to fantastic possibilities even if they can't be proven and you are a guy who will always be rooted in what can and cannot be proven.
I'd personally say the world needs both kinds of guys. If it didn't have them the place would be a little more boring. Without belief anything is possible we wouldn't have many of the wonders of technology we have today and without the guys telling the believers to get their heads out of the clouds it never would have happened. Humanity is complicated and needs all types to get better. Even crazy guys such as myself. Hell I think its a good idea to blow up the top of a mountain and any sane person would clearly see thats a bad idea.
Even theoretical physics must be falsifiable to be valid. That's why they do stuff like smash particles. They do it to test the predictions.
My belief is that the scientific method is the best tool we have to understand the nature of things. That may change, but the philosophy of science is where I draw my beliefs from. Until something better than the scientific method comes along, I'm sticking with it. So far, it's served me well!
As for a mountain top, a falsifiable theory would be that if I blow the mountain top up, I predict I'll get in a shitload of trouble - but have a good time. That's a testable theory!
Science all the things!
Well as I said. Too each their own. I believe you might not get into a shit load of trouble if you do it at precisely the right time.
Much of Theoretical physics is pure math. String theory for example. It is pure math it cannot be tested with our current technology. It makes predictions we have no way to test. Someday we might be able to test them but Einsteins prediction that gravity would bend light if my recollection is correct took 20 years before we could test it. So I would say just because something can't be tested today doesn't mean it cannot be tested at all.
I will always believe it takes all types for progress to happen, Schroedinger proposed a experiment that too this day cannot be tested yet it is accepted science because super position is a thing. There is much more to this world than what we can see. and hear and smell. Quantum mechanics proves that. A particle can literally be in two places at once that defies all logic. Hell it almost defies the scientific method. Quantum computers have you looked at how they work? Its incredible. It changes everything. They should not work at all yet they do. I wouldn't even believe it if I hadn't actually had the chance to use one. Something that was frankly way above my pay grade and beyond my understanding at the time. Just happened to be in the right place at the right time. I spent endless hours understanding how they work. I do now. At least pretty well and Basically its exploiting quantum entanglement to get probabilities out of an un observed particle. Theoretically its proof nothing exists. but thats just my own theory. Albeit one I think its reasonable but I haven't shared it with anyone.
There is no possible way I have actually stumped you. I refuse to believe you gave up I will just assume you went to bed. So good night Mr Buddha and I look forward to your rebuttal in the morning. 😉
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