Those weren't all my counter examples, see the degradation of some knowledge over time.

Economic growth is not currently an exponential upwards curve. So I'm not sure what your point is here.

Is high inflation possible on a global scale and peoples saved wealth shrink in absolute terms as well? I don't see why not, it just requires a global decrease in output with an increasing population.

I also don't see why people compares the intelligence of computers against humans on their own. Humans are tools users, why not compare against human + their tools (i.e. computers).