D-Wave Quantum said Wednesday that it had not only achieved “quantum supremacy,” but had done so using a practical problem, marking an industry first. The quantum-computing company said its Advantage2 system solved a problem in 20 minutes that would take one of the world’s most powerful supercomputers well more than 1 million years to complete.

Quantum stocks have been on fire lately as investors speculate on the next big thing in tech after AI. The frenzy has intensified since Google GOOG revealed its new computer chip, Willow, which can perform calculations in less than five minutes that would take one of the world’s most powerful supercomputers 10 septillion years (10,