Fast raised $124 million, burned $10 million a month, and shut down. The company that has ruined fundraising for everyone.

The consensus verdict is that they had no moat, bad founders, and reckless investors.

I disagree with the first part. And that disagreement matters for how you pitch.

The vacuum was real

Amazon's one-click patent expired in 2017. For twenty years, the most frictionless checkout on the internet was legally walled off from the rest of the economy. Every independent retailer was forced to extract payment through long forms that abandoned 80% of carts before completion.

Fast wanted to solve a real problem that people pay real money to solve.

They also get lucky with the timing. COVID arrived, and US e-commerce grew 18% in a single quarter in 2020. The market needed Fast urgently, and there was no incumbent who could give the market what it wanted.

That is a genuine vacuum and a real pull; investors weren't irrational.

The moat was real, but in the wrong competitive universe

Here is my actual position, and it diverges from most post-mortems.

Fast's network effect moat was sound. If every competitor had started from zero, Fast had a real moat. But competitors stored cards and had existing users. Fast planned to build users, merchants follow, network compounds, and switching costs emerge. That is a classic, defensible two-sided marketplace. It has worked many times.

But the giant payment companies like Apple Pay didn't need to build a user network. It lived in the hardware in your pocket. PayPal had 400 million active accounts, and Shopify powered 25% of US e-commerce. They didn't need a sales team. To users, they would have only added a feature, but that single feature required an infrastructure.

And there is even more. Fast argued that Apple is not a payment company; PayPal has years of AML and KYC, so Fast had created or presented itself as a category one. They were the only ones who could pull it off. They planned to use rapid marketing (lightning strike) to fill out the market; most people call it marketing hype, but it had worked before.   

Fast showed them exactly where to aim. Then, Stripe Fast's own lead investor built Link in May 2021, four months after wiring $102 million into Fast's Series B. Link required no merchant adoption. It appeared automatically inside every Stripe checkout on earth.

This is what I call a Mirage Moat: a position that would be unassailable in a greenfield, but evaporates the moment an incumbent with dormant inventory decides to activate.

$124 million, from Stripe's perspective, is an R&D line item. They watched Fast stress-test the market, validate consumer appetite, identify the integration failures, and map merchant resistance. Then they built the version with the distribution already solved.

Fast didn't fail because the moat was fake or non-existence that is the prevailing story. Fast failed because the moat was conditional, and the conditions were never going to hold.

What this means for your pitch deck and your investor meeting

If your moat is a network effect, an identity layer, or any position that compounds with adoption, your investor's first real question is not "is this defensible?" It's "defensible against whom, and what does it cost your competitor  to respond?"

Before you walk into that room, map the incumbents' dormant inventory. What do they already have, users, licenses, relationships, infrastructure that could be activated against your position without a build cycle?

If the answer is "a lot," you are pitching a mirage.

The honest version of that pitch is different. It says: we are the experiment that validates the market, we intend to move faster than the incumbents can assemble, and here is the specific mechanism that makes us hard to absorb or replicate before we reach escape velocity.

That's a fundable thesis. It's also an honest one.

Fast had the first part. They never had the second.