Tesla disrupted cars. Facebook disrupted the media and advertising. Netflix disrupted Hollywood. Disruptive technologies are nothing new. Canals and railroads disrupted transportation in the 1840s. Oil and steel disrupted manufacturing in the 1890s. Electricity, radio, and cars disrupted American's daily lives in the 1920s. The pioneers who led these disruptions generated generational fortunes. But each disruption also set off financial manias where average investors lost their shirts. This presentation will equip you with a historical perspective that will help you falling in to the same trap.