Yea, infinite parallel universes, thats the ticket. If an infinite number of parallel universes is what it takes to make the math work, then it’s not much of a theory. In other words, it’s utter b.s.
I got a suggestion for these physicists, you’ve recently dumped 10 dimensions in favor of 11 dimensions, take another step and go to 12 dimensions.
In all seriesness though, this theory of parallel universes has been kicking about for decades (read: Stephen Hawking's "A Brief History of Time"), but it has never able to have been proven, and probably might never be, at least not by us mere Earthlings. Only God holds the answer, and he ain't speaking to us about it.
Otherwise, theories such as Quantum Mechanics predict how a Transistor is supposed to work, but it still baffles physicists why it even works at all .... but there it is, trillions upon trillions of manmade Transistors ticking away doing their thing in our technological world.
Likewise, Aerodynamics says that a Bee is not supposed to be able to fly ... but there they are flying about, going from flower to flower gathering pollen, flying with the greatest of ease and control.