This author is pointing out that the fraction of the tech dream du jour that is actually realized is consistently about 1%, so taking tech dreams du jour seriously is guaranteed to give you a false world model. Which is unhelpful and maladaptive, unless perhaps your goal is to make money off of other people with that false world model.

I believe that full automation of the mundanities of human life is coming in the fullness of time. But for that insight to be helpful to me, I have to get the timing right, and the data suggests I should be extremely skeptical about excitable tech guys predicting big things in short time frames.