We can barely simulate a rough approximation of the brain of a worm. The world is filled with many things more impressive than early examples quantum computing.
The big difference is that these early quantum devices (non-scalable noisy quantum computers) are *programmable* and *universal*. It is the difference between an analog computer that can simulate one thing of fundamentally bounded size and digital computers that can simulate "anything" with *in principle* unbounded size.
The big difference is that these early quantum devices (non-scalable noisy quantum computers) are *programmable* and *universal*. It is the difference between an analog computer that can simulate one thing of fundamentally bounded size and digital computers that can simulate "anything" with *in principle* unbounded size.