Building a network effects business with financial institutions represents an extreme version of the 'cold start problem.' The initial phase of getting the first ~20 participants is excruciatingly difficult due to trust deficits, regulation, and inertia. It's described as 'the worst idea of all time,' but the value captured after achieving liftoff is immense.

While consumer fintech gets the hype, the most systematically important opportunities lie in building 'utility services' that connect existing institutions. These complex, non-sexy infrastructure plays—like deposit networks—enable the entire ecosystem to function more efficiently, creating a deep moat by becoming critical financial market plumbing.

Unlike other tech verticals, fintech platforms cannot claim neutrality and abdicate responsibility for risk. Providing robust consumer protections, like the chargeback process for credit cards, is essential for building the user trust required for mass adoption. Without that trust, there is no incentive for consumers to use the product.

To enable agentic e-commerce while mitigating risk, major card networks are exploring how to issue credit cards directly to AI agents. These cards would have built-in limitations, such as spending caps (e.g., $200), allowing agents to execute purchases autonomously within safe financial guardrails.

For hundreds of millions in developing nations, stablecoins are not an investment vehicle but a capital preservation tool. Their core value is providing a simple hedge against high-inflation local currencies by pegging to the USD, a use case that far outweighs the desire for interest yield in those markets.

The concept of 'banking deserts' extends beyond underserved regions. When specialized banks like SVB disappear, entire industry verticals (like tech, agriculture, or wine) can become 'underbanked.' This creates a vacuum in specialized credit and financial services that larger, generalist banks may not fill, thus stifling innovation in specific economic sectors.

While fast-moving, unregulated competitors like FTX garner hype, a deliberate, compliance-first approach builds a more resilient and defensible business in sectors like finance. This unsexy path is the key to building a lasting, mainstream company with a strong regulatory moat.

As the current low-cost producer of AI tokens via its custom TPUs, Google's rational strategy is to operate at low or even negative margins. This "sucks the economic oxygen out of the AI ecosystem," making it difficult for capital-dependent competitors to justify their high costs and raise new funding rounds.

Companies like Tether use "attestations" instead of full audits. An attestation is just a point-in-time snapshot of assets, unlike a comprehensive audit that reviews processes over time. Per Occam's razor, the logical reason for a firm to avoid a proper audit is the high probability of failing it.