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The two things you need to know about exponential growth: it lets you get to large numbers very quickly. And it always runs into physical barriers.

The presentation points out we've reached some stability in what our devices can do, and that echoes how the airline industry plateaued. We COULD build supersonic passenger jets and moonbases, but we don't. Similarly, in college in the 90s if I didn't get a new computer every year or two I was qualitatively behind in what my machine could do. Nowadays, I would barely notice issues with a laptop that was 5 years old. (And my hopes for a "techno rapture of the nerds" Singularity is diminished every time I have an interaction that reminds me of how there's just no there there with Siri...)

Not that there's not still a lot of room for change: self-driving vehicles are going to be super-disruptive.

Also: I really like seeing transcriptions of this kind of presentation, where I can skim/read at my own pace but still enjoy photos that half the time just provide general feel and a sense of being rooted. Electronic text often lacks that; I think that's one of the reasons comprehension and retention lags with electronic readers. But to me it feels like "arbitrary" images returns some sense of the physicality that would be otherwise lost.