Paul starts this letter beginning with a letter from a listener. The letter ends with the reason why our work has had more impact than John Bogle and Benjamin Felix (Both Truth Tellers).

The rest of the podcast is focused on a recent article- ⁠The Evolution of Financial Advice, by Ben Carlson. The focus is on the math, history and psychology of investing.

Paul concludes that most steps to successful investoring are well documented. But two areas are still open for fine tuning: Portfolio construction and fund selection. To help in that Paul recommends three Boot Camp Presentations: Fine Tuning Your Asset Allocation, Fixed Contributions and Fixed Distributions.

On this podcast, Paul Merriman dives into three big investor questions: Why would anyone add bonds to their portfolio—even in retirement? How has the Ultimate Buy and Hold Portfolio performed in 2025? And how much Small Cap Value should an investor add to VTSAX? Along the way, Paul explains why diversification and balance matter just as much as chasing higher returns.

During the podcast Paul references ⁠Table G-1b, Fine Tuning Table: S&P 500 vs. US SCV Equity Porfolio - Out-Performance⁠ and ⁠Table H2a - Sound Investing Portfolios: Comparison Data ⁠, Quilt Chart K1a. He also points to Chris Pedersen’s Best In Class ETF Recommendations and his 2 Funds for Life returns table. These resources provide valuable context for comparing U.S. vs. international returns, equity vs. bond allocations, and how small-cap value can enhance a long-term strategy.

Paul Merriman is looking ahead to the 2025 Bogleheads Conference (October 17–19), one of the premier gatherings for long-term investors. The lineup includes Vanguard CEO Salim Ramji, Christine Benz, Bill Bernstein, Rick Ferri, Alan Roth, Jim Dahle, and more. Paul will be there for all three days to connect with listeners, share new projects, and learn from some of the best minds in the field. Even if you can’t make it, all sessions will be available later on the Bogleheads YouTube channel.

In this episode of Sound Investing, Paul also revisits key lessons on building lasting portfolios. He explains why small-cap value has historically outperformed the S&P 500, how the Four-Fund Strategy makes diversification simple and effective, and why tax-efficient investing matters for 401(k)s, IRAs, Roths, and taxable accounts. He also highlights the importance of financial education for young people, pointing to NGPF.org’s Question of the Day as a powerful way to spark conversations about money. And, of course, Paul shares a reminder about the risks of hype-driven assets through the story of Bitcoin Pizza Day.

To close, Paul adds a lighter touch by reading a poem about cryptocurrency—written in the playful rhythm of The Music Man.