In researching my book on private coinage I learned a lot about the early history of steam engines. Consequently I found myself co-authoring, with my UGA colleage John Turner, several papers critically assessing the claim that James Watt's engine patent held back British industrial progress, including this published comment on a paper by Michele Boldrin and David K. Levine, and a working paper, "Strong Steam, Weak Patents, or, The Myth of Watt's Innovation-Blocking Monopoly, Exploded."