(I'm the post's author.)

I fully agree with you: the title is a sound byte and somewhat imprecise. Creating good titles has been an ongoing struggle for me. As an engineer, I want to be precise; as a writer, I want more readers. What I've learned over time is that something like "The 100-hour rule" performs way better than something like "the speed of knowledge acquisition decelerates rapidly."

Hopefully the post's gist is clear: it takes a long time to become a true expert/master, but much less time to surpass everyone who has zero knowledge about a field.