Spirit's troubles highlight a broader market trend where budget-conscious consumers cut back while the wealthy splurge on luxury. This pattern, once confined to goods, is now evident in services like travel, signaling a potential risk for other budget-focused businesses and an opportunity for luxury brands.

The common approach to reduce flying's climate impact—taxing fuel—disproportionately harms lower-income individuals. A more progressive and technologically optimistic solution is to invent cheaper, carbon-neutral jet fuel, expanding access to the 'privilege' of flight for everyone, not just the wealthy.

The 'Andy Warhol Coke' era, where everyone could access the best AI for a low price, is over. As inference costs for more powerful models rise, companies are introducing expensive tiered access. This will create significant inequality in who can use frontier AI, with implications for transparency and regulation.

The NFL's potential European expansion via supersonic jets mirrors baseball's history. The Dodgers and Giants only moved from New York to California once commercial air travel made cross-country trips practical. This reveals a recurring pattern where transportation breakthroughs are the critical catalyst for unlocking bi-coastal or intercontinental sports markets.

History shows that transformative innovations like airlines, vaccines, and PCs, while beneficial to society, often fail to create sustained, concentrated shareholder value as they become commoditized. This suggests the massive valuations in AI may be misplaced, with the technology's benefits accruing more to users than investors in the long run.

The convergence of autonomous, shared, and electric mobility will drive the marginal cost of travel towards zero, resembling a utility like electricity or water. This shift will fundamentally restructure the auto industry, making personal car ownership a "nostalgic privilege" rather than a daily necessity for most people.

Contrary to fears of a 'digital divide,' technology driven by free markets has become the great equalizer. Today, more people worldwide have access to smartphones and the internet than to basic utilities like electricity or running water, proving that market forces democratize access effectively.

The true feeling of wealth for many founders isn't a flashy car or a large house, but the ability to fly business class. This specific luxury represents a transition from enduring physical discomfort (e.g., back pain from economy) to prioritizing well-being and comfort, making it a powerful psychological milestone.

Airlines are increasingly devaluing elite status by offering last-minute cash upgrades to non-status members via mobile check-in. This practice allows them to monetize empty premium seats, often leaving their most loyal, high-status flyers stuck at the top of the upgrade list in economy.