there were cool things that came from pure math in the early quantum + relativistic era -- lasers + black holes were math constructs before we thought to build

there were cool things that came from pure math in the early quantum + relativistic era -- lasers + black holes were math constructs before we thought to build them / look for them in the sky I think (as an outsider to this field) the 'probing' now has fallen to the quantum computing people. their day job is basically making houses of cards out of entangled particles; if there are tricks to be learned about entanglement, they may be the ones to find them