Your TAM Slide Is Lying to You

Every pitch deck has one. The slide with the giant number. Global pet health market: $364 billion. Pet wellness tech: $47 billion. And then, inevitably, the line that should be retired forever:

‘If we capture just one percent of that market, we have a multi-billion dollar business.’

I chuckle every time I hear it. Not because the market isn’t real. It often is. I chuckle because that sentence is the precise moment a founder stops thinking like an operator and starts thinking like a slideshow.

TAM analysis is not a capture strategy. It is a math problem with no solution attached.

A few years ago, I was evaluating a company as a potential investment. The founder had done the TAM work correctly.

The market was massive, the timing was reasonable, and the problem was real. Then I asked the question I always ask: how are you actually going to capture your slice of it?

The answer was essentially: advertising and team.

Maybe some B2B partnerships down the road. The founder said it with total confidence, as if naming two broad categories was the same thing as having a plan.

I didn’t invest. Not because the market was wrong, but because there was no engine.

1. No specific acquisition channel with unit economics attached.

2. No partnership structure has been tested.

3. No reason to believe the SOM would become revenue rather than just a number on a slide.

The founder wasn’t lying to me. They were lying to themselves. That’s the more dangerous version.

It persists because it sounds rigorous while requiring nothing. You can build that slide in thirty minutes.

It gives the founder a reason to feel good, gives the investor a reason to nod, and sends everyone home without anyone having to answer the hard question.

The hard question is: what is your specific, defensible mechanism for winning customers, and what does it cost to operate?

Investors who have been around long enough know this. They are not impressed by TAM slides anymore. They are waiting for the part where you explain the engine.

At AlertBoot, we built a partner program that drove roughly 80 percent of our sales. That was the engine. It was specific, measurable, and repeatable.

We could tell you the cost of acquiring a partner, the revenue a partner generated over time, and what it took to activate them.

When I talked to investors about market capture, I wasn’t waving at a TAM slide. I was pointing at a machine that was already running.

That is what a capture strategy actually looks like. Not a category. A machine.

It doesn’t have to be a partner channel. It can be a direct sales motion with proven CAC and LTV. It can be a product-led growth loop with activation data behind it.

It can be a category-defining distribution deal that no competitor can replicate. What it cannot be is ‘advertising and team,’ stated without specifics.

Building PerkyPet, I hold myself to the same standard. The pet wellness market is enormous. That’s not a strategy. The question I ask myself constantly is: what is the specific, defensible path to the first ten thousand paying pet parents, and what does it tell us about the next hundred thousand?

If I cannot answer that with something concrete, I don’t have a business. I have a slide.

The TAM tells you the ceiling. It says nothing about whether you can reach it, or what it will cost to try. Founders who know the difference build companies. Founders who don’t build decks.

The next time you hear someone say ‘we only need one percent of the market,’ ask them one question: how, specifically, do you get it?

The answer will tell you everything.

Over the past weeks, I’ve been sharing lessons from three decades of building technology companies.

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Three weeks ago, the lessons that shaped my approach as a founder and operator:

Two weeks ago, we uncovered 5 things cybersecurity taught me:

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