new technologies are over-estimated in the short term, and under-estimated in the long term.

Decades ago our computers were "soon" to be voice controlled, listening to our speech and doing our bidding. That was a big load of hype. However, over time and below the radar it became true as computers first answered phones, then took limited commands in cars and smartphones and now it is basically true (without all the hype).

Also, I wonder if these kinds of comments risk becoming

"I think there is a world market for about five computers."

or

"640K of memory should be enough for anybody."