Overheard : Return on investment from a book

Quote from “The Rebel Allocator” by Jacob L. Taylor on the return on investment from reading a book

For around ten dollars, you get to have an in-depth conversation with an expert who dedicated years to distilling all the information about a topic. For the cost of a mediocre dinner, you get access to years of another human’s effort. I did the math. If it took the author one year of work, you’re paying them about one penny per hour. How much time does this penny-per-hour investment save you in culling through information? We’re talking lifetimes.