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 a

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. [1] https://www.quantamagazine.org/google-and-ibm-clash-over-quantum-supremacy-claim-20191023/ https://www.quantamagazine.org/google-and-ibm-clash-over-qua...