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> There’s even exponential growth in the rate of exponential growth.

When you know somebody didn't take calculus or didn't "get" it.

Either that, or he didn't explain what he meant.

(Not Paul Allen, just another interviewee.)

Interviewee? That's a quote from Google Director of Engineering Ray Kurzweil - https://en.wikipedia.org/wiki/Ray_Kurzweil

d/dt e^t = e^t. So while vapid and pop-sci, technically true. Of course, the exponent is constant or we'd be talking about the Ackermanity instead.

Technically true, but the quote makes it sound as if this were not necessarily the case for some kinds of exponential growth, which is clearly false.

Kurzweil really is the hand-waver of all hand-wavers. Exponential progress is the exception rather than the rule, due to hard physical limits.