The article doesn't explain that "Quantum supremacy" is a term that means that the quantum machine can solve any single solution, no matter how contrived, faster than a conventional computer could in a reasonable amount of time. So it's a very important yet basic proof of concept for a quantum machine, and doesn't indicate how close it is to 1. solving useful problems, and 2. consumer accessibility.
Also, I was surprised there was no discussion of cryptography, which I thought was the most serious concern surrounding quantum computing.
According to Lu Chaoyang, a professor in charge of the experiment at USTC, the Chinese computer achieved the breakthrough by manipulating particles of light.
China’s official news agency Xinhua claimed the computer, which comprises lasers, mirrors, prisms and photon detectors,
How many times do i have to critically support china before i get my own laser-mirror computer
