The article argues that financial history repeats with speculative bubbles, driven by investor greed and a "willing suspension of disbelief." Current AI investments and SpaceX's vague market promises echo past frenzies like Tulip Mania and the South Sea bubble. Historically, successful technologies, from railroads to the internet, often bankrupt investors due to over-investment and inflated valuations. With AI mega-scalers investing heavily, often debt-funded, and rising margin debt amplifying risks, the author warns of a "perfect storm" and urges extreme caution, as bubbles always burst suddenly, not slowly.