Episode summary
The Last Bubble Starved Energy. This One Starves Housing. Is the Opportunity Where the Money Isn't?
Excess Returns
· · 33 min · Hosts: Jack Forehand, Matt Zeigler · Guests: Richard Bernstein, David Rosenberg, Tian Yang, Brent Donnelly
Summary
The episode argues that the AI and data center buildout is starting to look like a capital-allocation problem as much as a technology story. One guest said about 50% of business capex is now AI and AI related, while ex-AI capex is negative year over year, and connected that imbalance to housing affordability, infrastructure underinvestment, and a broader squeeze on the real economy. Rich Bernstein framed it as a bubble that is misallocating capital away from housing and other scarce uses, much like the late-1990s boom left energy starved for investment.
The conversation pushed on the macro implications of that spending pattern. Tian Yang’s Kalecki-Levy framework was used to explain why corporate and household dissaving can keep the economy resilient in the near term, but also why a pullback in hyperscaler capex could weaken the income-spending loop. The host and guests also distinguished between AI’s contribution to GDP growth and its share of total GDP, arguing that the headline growth impact can be large even if the direct spending share is still limited.
Brent Donnelly’s segment shifted the focus from forecasting to process. He argued that rationality matters more than raw intelligence in markets, that bearishness is often the biggest leak in finance, and that traders should think probabilistically rather than cling to a single narrative. Across the episode, the core message was that investors should pay attention to where capital is flowing, who is being crowded out, and how long the current regime can persist before the market starts to price the other side.
Key takeaways
- Rich Bernstein argues the AI and data center boom is misallocating capital in a way that starves housing and other parts of the real economy.
- David Rosenberg says roughly 50% of business capex is now AI and AI related, while ex-AI capex is running negative year over year.
- Tian Yang says the economy stays resilient when households and corporates both spend more and save less, but a hyperscaler capex pullback could unwind that loop.
- The hosts emphasize that AI can matter a lot for GDP growth without being a huge share of total GDP.
- Brent Donnelly argues that rationality and Bayesian thinking matter more than being the smartest person in the room, especially when managing risk.
Notable quotes
“about 50% of business capex is AI and AI related and um that 50% is growing in real terms at like you know 18% growth”
“one person's spending is somebody else's income”
“I think having being able so one thing I used to do when I was in my 30s was we would go to visit clients all the time”
“intelligence is like the minimum just table stakes to get into trading”
How the episode opens
Welcome to the Exus Returns weekly rap. I'm Jack Forian joined as always by Matt Ziggler and and Matt, I I believe we did something this week on XS Returns that's never been done on a podcast before. — We have done something that has never ever been done on a podcast before. Do you want to tell the people?
And it's not embarrassing. It actually is a good thing. We didn't go to the OpenAI influencer summit and embarrass ourselves in public and reject our fans. No, we didn't do that. We did something. I don't know if it's actually cooler than that. It's probably way less cool than that, but I was I was personally super excited to do this. Do you want to say what we did?
Yeah. Yeah. So, you got Rich Rich Bernstein and David Rosenberg. Um, and so back in the day, like in the financial crisis, David was the chief economist at Meil Lynch and Rich was the chief strategist. Um, and you were an adviser at Meil Lynch back then. So, you brought them together for a joint interview and I don't think anybody's ever done that before.
This was crazy. This is the special part about having separate conversations. There's episodes with both Rich and Dave if you want to check them out.
old episodes with lots of evergreen stuff in them. But the cool part here was 18, 19, almost 20 years ago, I basically listened to these guys every single day cuz there was the morning call, there was other stuff you're doing as the world's trying to end. I was a sponge for information and I got so much from these guys and it really showed me because at first I you would go, how does the economist and the market strategist completely disagree on stuff?
From the episode’s captions: roughly the first two minutes, lightly cleaned. Keep watching on YouTube →
Topics
- ai capex
- data centers crowding out housing
- k-shaped economy
- inflation and gdp growth
- bayesian investing
Watch the episode
Summary, takeaways and quote selection by Octagon. Quotes are short excerpts; the full conversation is in the episode.
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