IBM challenged that the 2019 case could be handled by a supercomputer [1].
The main issue is that these algorithms where today's early quantum computers have an advantage were specifically designed to be demonstration problems. All of the tasks that people previously wanted a quantum computer to do are still impractical with today's hardware.
The main issue is that these algorithms where today's early quantum computers have an advantage were specifically designed to be demonstration problems. All of the tasks that people previously wanted a quantum computer to do are still impractical with today's hardware.
[1] https://www.quantamagazine.org/google-and-ibm-clash-over-qua...