That's not at all what the author is saying. He's saying that consumer attention and convenience has hit its limit. That's not the entire field of technology.

Energy clean and too cheap to measure, faster construction, new modes of manufacturing, new medicines, efficiency of engines, new modes of transportation and propulsion and so on. You can easily imagine an entire array of things that would materially improve our lives and improve productivity through the entire economy, applicable even in rural places.

What has probably reached its end is the zero-sum rent seeking enabled by platform owners and attention merchants. Maybe the Silicon Valley investors of this world will go back to the scifi of the 60s and try to come up with inventions that touch the physical world instead of continuing to pump money into the cyberpunk version of the future we've been trying to emulate for the last 20 years.