On the Fact that There Were Actually People in the 19th Century Who Opposed the Tractor on the Grounds that It Would Cause Massive Unemployment

And their disciples and offspring are obviously among us today................................................................................................P.S. And, yes, the tractor did cause a lot of farming jobs to go away but it also created opportunities for these same folks to do something else and more often than not make MORE money. It's a little something called progress, folks.