Books

That’s interesting, I knew a bit about the start of Amazon but hadn’t heard the commodity take specifically. 

Also amazing this all stemmed from the invention of the printing press 500 years earlier, that we reached the point where books were commodities

I made a killing selling used books on Amazon for a few years before the prices on those bottomed out and people just don't buy them as much anymore since the Kindle and other ereaders were released.  It was a revolutionary idea to sell books the way that Amazon did.

💯 books being just the test case is fascinating