In a limited sense I agree, but I don't think it supports your hypothesis that the "pace of technological advancement" is slowing, only that the pace of these categories are slowing. I'd argue that in many ways these aspects of modern life are 'good enough' in historical context, so now there are huge efforts instead in biotech to improve the quality of life.Lets actually try this one. Here's a few:
-Computers: Invented in 1946, started to affect the masses in ~1980, fully mature around 2000.
-Airplanes: Invented, 1903, started to affect the masses in around 1935, fully mature by 1958.
-Cars: This one's a little tougher to pin down. I'm going to pick 1880 as the start, fully mature by the 1950s. While they have continued to evolve, since then, they haven't in a "game changing" way. Perhaps there is a game changer still to come for them, though...
I saw the other day where a professional soccer player had received a heart transplant, and was able to continue playing rather than hobble around, which I found simply amazing, and I chaulk up to some of these new biotech anti-rejection drugs. I doubt that soccer player would be equally thrilled by 3x faster planes or 2x faster cars or 10x faster computers.