Google claim to have taken supremacy over quantum. Yes, a quantum computer has solved a problem in a reasonable time (which would be hard for a standard computer). Google made this announcement on October 23. This is being called the quantum supremacy milestone and a highly anticipated step towards the era of quantum computers.
But, don’t expect quantum computers to be at a store near you soon. The reason for this is, the calculation that the quantum computer performed was not that useful. The task was only to test the strength of the quantum computer and to see how it handles a problem a classical computer might not.
What’s more some researchers still are not accepting this as a milestone and say Google still has not achieved the milestone of quantum computers being a reality as still there’s a lot of research required.