I'd argue that AI reduces the distance between the floor and the ceiling, only both the floor and ceiling move -- the floor moves up, the ceiling downwards. Just using AI makes the floor move up, while over-reliance on it (a very personal metric) pushes the ceiling downwards.

Unlike the telephone (telephones excited a certain class of people into believing that world-wide enlightenment was on their doorstep), LLMs don't just reduce reliance on visual tells and mannerisms, they reduce reliance on thinking itself. And that's a very dangerous slope to go down on. What will happen to the next generation when their parents supply substandard socially-computed results of their mental work (aka language)? Culture will decay and societal norms will veer towards anti-civilizational trends. And that's exactly what we're witnessing these days. The things that were commonplace are now rare and sometimes mythic.

Everyone has the same number of hours and days and years. Some people master some difficult, arcane field while others while it away in front of the television. LLMs make it easier for the television-watchers to experience "entertainment nirvana" while enticing the smart, hard-workers to give up their toil and engage "just a little" rest, which due to the insidious nature of AI-based entertainment, meshes more readily with their more receptive minds.