According to a Harvard economist, spending on data centers and artificial intelligence accounted for 92% of U.S. economic growth in the first half of last year.   

That's fueled speculation that we’re in an AI bubble, because spending on that level doesn’t feel sustainable. If the bubble pops and the spending stops, the shockwave could hit all of us. Past economic collapses led to bankruptcies, lost retirement savings, and disappearing jobs. 

But sometimes, the crash leaves something good behind... that we may not fully appreciate for years. 

This week, we look at bubbles from the past and ask: When the money burns away, what’s left? 

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Booming is a production of KUOW in Seattle, a proud member of the NPR Network. Our editor is Carol Smith. Our producers are Lucy Soucek and Alec Cowan. Our hosts are Joshua McNichols and Monica Nickelsburg.