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This episode is the first in Eight Rules Revisited, a Thursday series running alongside the regular podcast. Each week, I take one of the eight golden rules from my 2018 book Investopoly and compare it with the version in my new book, Wealth by Design, out on 28 July. Some rules have changed, some have tightened, and some have simply been confirmed by eight more years of evidence and client experience. I'll tell you which is which, plainly, each week.
We start with Rule 1: think in decades, not days. The rule itself hasn't moved. What has changed is how I think about risk and volatility. In 2018, I told readers to ignore short-term market movements. That was true, but incomplete. I now define risk as the probability of failing to reach your goals, not the chance of watching prices fall. Seen that way, holding too much cash is risky, and refusing to invest in growth assets because they wobble is risky too. Volatility is simply the price of admission for long-term returns, and I put some numbers on how bumpy you should expect the ride to be.
I also share the four-question filter I now apply to every major financial decision, and a short exercise you can do this week on your next three big decisions.
If you find this useful, the full frameworks and worked examples are in chapter one of Wealth by Design. Pre-order before 28 July and you'll also receive the Investopoly Research Assistant, an AI tool trained on a decade of my writing.
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Important
This podcast provides general information about finance, tax and credit. It doesn't take into account your specific objectives, financial situation or needs, so you need to assess whether it's relevant to your circumstances before acting on it. If you're not sure, speak to a licensed, trustworthy professional.
Hosts & Guests
Information
- Show
- FrequencyUpdated Weekly
- PublishedJune 17, 2026 at 7:00 PM UTC
- Length17 min
- RatingClean
