Amadeus reinvests heavily in R&D, with a spend equivalent to its #3 competitor's total revenue. This creates a widening technology and product gap that smaller players cannot bridge, fortifying its market leadership and making it increasingly difficult for others to keep up.

Amadeus maintains its "gorilla" status by being beneficial to its ecosystem, acting as a variable cost for airlines and sharing economies of scale. The ultimate test of a great business is when competitors hate you but customers love doing business with you for the same reasons.

GE employs a razor-and-blades model on an industrial scale, accepting losses on initial engine sales to powerful airframers like Boeing. This secures a multi-decade, high-margin stream of mandated service and parts revenue from a fragmented base of airline customers, where aftermarket sales can be 3-5 times the original engine price.

The founders initially feared their data collection hardware would be easily copied. However, they discovered the true challenge and defensible moat lay in scaling the full-stack system—integrating hardware iterations, data pipelines, and training loops. The unexpected difficulty of this process created a powerful competitive advantage.

When asked if AI commoditizes software, Bravo argues that durable moats aren't just code, which can be replicated. They are the deep understanding of customer processes and the ability to service them. This involves re-engineering organizations, not just deploying a product.

Unlike the broader aircraft parts market, the engine aftermarket is highly resistant to third-party 'PMA' parts. Even credible players like Pratt & Whitney have failed to copy GE parts. Technical complexity, voided warranties, and leasing company policies create a strong defense that protects lucrative service revenues.

Amadeus was formed by major airlines to create a neutral distribution system. This origin story provided immediate scale, credibility, and deep industry integration, creating a powerful competitive moat from day one that would be nearly impossible for a startup to replicate.

A competitive moat can be built by moving beyond simple service delivery (e.g., shipping medicine) to a closed-loop system. This involves diagnostics to establish a baseline, personalized treatment plans based on results, and ongoing re-testing to demonstrate improvement, creating a sticky user journey.

A sustainable competitive advantage is often rooted in a company's culture. When core values are directly aligned with what gives a company its market edge (e.g., Costco's employee focus driving superior retail service), the moat becomes incredibly difficult for competitors to replicate.