Episode summary

He Invested Through Five Bubbles | Andy Constan on What They Taught Him About AI

Excess Returns · · 1 hr 4 min · Hosts: Andy Constan

He Invested Through Five Bubbles | Andy Constan on What They Taught Him About AI – Excess Returns

Summary

Andy Constan argues that bubbles are almost impossible to call in real time, but their regime can be recognized by a common pattern: a new technology or policy shift, an escalation phase of easy money and accelerating expectations, and then a late-stage period of FOMO and contagion. He says the current AI cycle looks like past episodes in its setup, especially the late-1990s internet boom, but it is not a perfect repeat because tech is already a much larger share of the market and economy.

He traces the present AI trade to the ChatGPT moment, Microsoft’s OpenAI investment, and a sharp upward reset in semiconductor earnings expectations. In his view, the key question is not whether AI is real, but whether demand, financing, and end-customer spending can support the trillion-dollar capex wave now being promised. He points to hyperscaler free cash flow, shrinking buybacks, and rising corporate debt issuance as the main funding sources.

Constan also emphasizes that human nature makes bubbles powerful: people see neighbors getting rich and feel pressure to join. He says policy can extend or distort bubble dynamics, but it can also eventually turn against the winners through redistribution or regulation. For investors, the lesson is less about timing the top than recognizing the regime and changing behavior before the most costly mistakes happen.

Key takeaways

  • Andy Constan says bubbles are defined less by price level than by a regime of newness, escalating expectations, and FOMO.
  • He argues the current AI cycle rhymes with the late-1990s tech bubble, but tech’s much larger size today limits how far it can expand.
  • He sees semiconductor earnings expectations as having stepped up sharply, but says the real constraint is who will fund the enormous AI capex and who will ultimately pay for it.
  • Constan says hyperscalers are financing the buildout with cash flow, reduced buybacks, and more debt issuance, which could become a market headwind.
  • He thinks policy makers often amplify bubbles at first and later try to redistribute the gains once the social consequences become obvious.

Notable quotes

“being able to pick the top not only of just a general market but an actual bubble. That's the holy grail”

— Andy Constan

“The reason why a bubble regime is so difficult is because it plays precisely on human nature”

— Andy Constan

“There's the root conditions, which don't have to be a bubble, but root conditions can become a bubble. Then there's the escalation events and then there's the peaking”

— Andy Constan

“You see your neighbor up 100% on some semiconductor stock, it matters to you”

— Andy Constan

“where is the source of the rally from the semiconductors. The source is that people are buying a lot of chips”

— Andy Constan at 47:42

How the episode opens

Being able to pick the top not only of just a general market but an actual bubble. That's the holy grail. I mean, nobody can you can't find the holy grail.

It doesn't exist. The reason why a bubble regime is so difficult is because it plays precisely on human nature. You see your neighbor up 100% on some semiconductor stock, it matters to you.

Not only did they cut, but they did surprise cuts. And this is from the same guy who, you know, 40% ago had used the term irrational exuberance to describe the stock market. He was cutting into a stock market that was up 40% from when he made those comments.

There's the root conditions, which don't have to be a bubble, but root conditions can become a bubble. Then there's the escalation events and then there's the peaking and I think we're in that phase right now.

Welcome to the first episode of First Principles with Andy Conson. Andy, thank you so much for doing this with us. We're excited uh for you to be here with us today.

Yeah, I'm excited too. It's going to be interesting. There are a lot of shows out there that give people opinions on what's going on in the markets and we're going to do some of that on this show.

But I think the overarching goal, what we hope to accomplish here is to have a discussion that goes deeper on a lot of different subjects. And what we really want to do is focus on lessons and frameworks behind what is happening in the market so we can help our listeners and our audience develop a better understanding of what actually it is that drives drives the things in the markets and drives the economy.

From the episode’s captions: roughly the first two minutes, lightly cleaned. Keep watching on YouTube →

Topics

  • market bubbles
  • ai investment boom
  • semiconductor earnings
  • ai capex financing
  • fomo and human nature

Companies and tickers mentioned

  • MSFT
  • OpenAI
  • Microsoft
  • Netscape

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Watch “He Invested Through Five Bubbles | Andy Constan on What They Taught Him About AI” on YouTube

Summary, takeaways and quote selection by Octagon. Quotes are short excerpts; the full conversation is in the episode.

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