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Mailbag, incl: Is AI a risk to bitcoin? July 26, 2026

July 25, 2026

AI Summary

5 min read

“I think the best counterargument that you can come up with that I will get bored. Well here's the thing. Let's say that I retire and let's say a year later I'm just climbing the walls and I'm bored senseless. Well, go back to work.”

That is how Andrew Page, co-host of the Motley Fool Money podcast, answers a 25-year-old listener who wants to know exactly how much money he will need to retire. The question, from a listener named Aaron, kicks off a wide-ranging mailbag episode that also covers how to handle a massive winning position in Nvidia, whether AI poses an existential risk to Bitcoin, and why a popular investing service stopped publishing its performance numbers publicly.

The Winner’s Dilemma: When to Flinch with Nvidia

The episode opens with a letter from James, an investor who bought $20,000 worth of Nvidia shares in 2018 after noticing that every cloud provider would eventually need GPU chips. That position has since grown to roughly $500,000, becoming an uncomfortably large weighting in his self-managed super fund. He asks the classic question: when do you sell a winner?

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What you'll learn

  • 1 (03:44) **Listener James: How to Handle a Massive Winner (Nvidia)** - A listener describes his $20,000 Nvidia investment grown to ~$500k, now a huge portfolio weighting, and asks how to rationalize what to do with a winner.
  • 2 (06:16) **The Psychology of Scaling Up Your Wealth** - The hosts discuss the challenge of adjusting your investment behavior as your portfolio grows over decades.
  • 3 (21:42) **Listener Genevieve: Where Are the Published Performance Figures?** - A listener asks why Motley Fool's published performance data is not publicly available on the website, as she had heard it was.
  • 4 (28:33) **Listener Aaron: How Much Money Do I Need to Retire at 25?** - A 25-year-old listener asks how to calculate a retirement number, noting inflation (a beer costing $150) and floating the idea that one Bitcoin might be enough.
  • 5 (29:46) **Does AI Pose a Risk to Bitcoin?** - The hosts tackle Aaron's second question about whether artificial intelligence could threaten the Bitcoin network.
  • 6 (62:04) **Closing Thoughts: The Power of Saving Half of Every Raise** - Scott shares a story from a military instructor about building the habit of saving.

+ Full timestamped outline available in the app

Guests on this episode

Show Notes

– What to do with my massive Nvidia holding?

– Where is the public track record?

– Is AI a risk to bitcoin?

– How much is ‘enough’ for a 25-year old?

See omnystudio.com/listener for privacy information.

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