Musk has been predicting self driving cars next year for fifteen years. Fifty years ago, everyone was going to be flying supersonic all the time. Flying cars were just around the corner. Interplanetary travel. Everyone forgets the technology that fails.
This is the MoviePass era of language models
Actually I think with flying cars it's more of a problem with noise, regulation, risk, etc than a technological problem.
Supersonic again is a problem with noise and cost rather than technological.
Self driving is definitely a technological problem.