Some Things I’ve Learned Lately

Key Takeaways

• Author recorded his own audiobook after studio sessions
• Top 10% holds ~70% of US wealth, down from 90% in 1900s
• Carnegie’s $40 million profit then equals ~$2 billion today
• Energy per capita is 700 times higher than in early 1800s
• Audiobook adoption drives higher nonfiction consumption during idle moments

Pulse Analysis

The audiobook market has exploded in the past decade, with listeners now preferring narrated content for its convenience. Authors who lend their own voices, like Ben Carlson, gain a personal touch that can deepen audience connection and differentiate their titles in a crowded shelf. This trend also reduces production costs and aligns the narration with the author’s intended tone, making the listening experience more authentic.

Carlson’s reflections on wealth concentration echo a broader academic consensus: while the U.S. still exhibits stark inequality, the gap has narrowed from the Gilded Age’s extreme 90‑percent concentration among the top five percent. Historical episodes, such as Andrew Carnegie’s shift from profit‑maximization to philanthropy, serve as a reminder that wealth can be a catalyst for social impact. Modern investors and policymakers watch these patterns closely, as they influence tax debates, corporate governance, and charitable giving strategies.

Energy availability remains the silent engine behind economic growth. Vaclav Smil’s data—showing a 700‑fold increase in per‑capita usable energy since the 19th century—highlights why energy‑rich economies dominate global trade and innovation. As geopolitical tensions reshape supply chains, understanding the historical link between energy, productivity, and living standards becomes essential for investors assessing long‑term risk and opportunity. Carlson’s synthesis of these themes offers a roadmap for readers seeking to align personal finance decisions with macro‑economic realities.