Timelines are very uncertain, also definition what would satisfy this statement of operating as a high income knowledge worker is very unclear. Is it for one task? Many tasks? Any task?
It's highly likely that these CEO will continue to hype up a singular examples and misrepresented claims that lead to setting outsized expectations. Already seeing expectations that all tasks are now possible and causing chaos in the corporate world of folks trying to be on the bandwagon.
Also wonder if it hides the true value that the symbiotic work of human with phd level AI assistant is going to out perform any autonomous agent for the foreseeable future.
I'd certainly question whether LLMs will. AI writ large, on an infinite timescale, who knows. But for LLMs I would be sceptical. The only knowledge worker jobs they seem seriously likely to take over are writers of high volume, low-quality bullshit (for instance, real estate ads, which have always had a bit of a problem with both stylistic suck and, well, reality), but those generally aren't particularly high-paid.