I’ve only asked GPT4 a few niche questions on subjects of interest to me, so I can’t really judge it yet. But so far its answers can’t compete with Wikipedia. However, it seems good at drilling down and doing followup questions that build on the prior questions, which is interesting. I can see that natural language give-and-take back-and-forth being useful for things like early education, diagnosing non-emergency patients, troubleshooting home PC problems with non-computerphiles, etc.