> but the S-curve will look like it for awhile.

Yeah, S-curve should be classified as fallacy, because it rarely covers what people argue it does.

Economic and technological growth is a stack of S-curves, where one very specific facet may hit limits and taper off, only for equivalent, complementary or alternative facet to take off in its place. Added up, there's no sign of the exponent stopping any time soon, not until hitting real limits, or (probably more likely) some general catastrophy that shuts down human civilization.