Consider the agricultural revolution of the early 1700s, Charles Townshend, walking around after his cows, noting every poop, taking detailed notes about every poop, and then a year later, what grew where that poop was, and what were the cows eating when they created that poop? His neighbors certainly regarded him as eccentric, having such a fascination with poop. And yet the whole modern world is indebted to him for his odd obsession. And likewise, Jethro Tull's obsession with designing a machine that could replace the workers his father and grandfather had worked with.