Involving quantum mechanics:
In an enormously complicated 165-page paper, computer scientist Zhengfeng Ji and colleagues present a result that penetrates to the heart of deep questions about math, computing and their connection to reality. It’s about a procedure for verifying the solutions to very complex mathematical propositions, even some that are believed to be impossible to solve. In essence, the new finding boils down to demonstrating a vast gulf between infinite and almost infinite, with huge implications for certain high-profile math problems. Seeing into that gulf, it turns out, requires the mysterious power of quantum physics.
Tom Siegfried, “How a quantum technique highlights math’s mysterious link to physics” at ScienceNews
It’s not entirely clear why a link between physics and math should be mysterious. If mathematics underlies the universe, we ought to expect such links.
Of course, some people may believe that mathematics is an illusion generated by the human brain to aid survival and reproduction. But that is their lookout.