“Quantum speedup is achievable in a real-world system and is not precluded by any hidden physical laws,”

quantum computing power will “grow at a double exponential rate,” besting even the exponential rate that defined Moore’s Law

Dario Gil, head of IBM Research, described the experiment as a highly special case “laboratory experiment” that has “no practical applications.” He added, “Quantum computers will never reign ‘supreme’ over classical computers, but will rather work in concert with them, since each have their unique strengths.”

Jim Clarke, Intel Labs’ director of quantum hardware, called Google’s update “a notable mile marker.” He said that “a commercially viable quantum computer will require” many R&D advancements before becoming a reality.