Follow the constraint.

Most private-market conversation is organised by sector. Healthcare, software, industrials, energy — the labels are how deals are catalogued, how funds are marketed, and how attention is allocated. They are also, for the purpose of finding return, almost useless. A sector is a category. It does not tell you where the money is, why it stays there, or whether it will still be there in five years.

Constraints do. In every market there is one thing that is genuinely scarce and genuinely binding — the step that everything else has to pass through. Whoever holds it captures a disproportionate share of the economics, and holds it against competition, because the constraint is precisely what competitors cannot easily reproduce. Find the constraint and you have found the question that actually matters.

The constraint is rarely the obvious thing.

It is almost never the product, because products are copied. It is the certification that takes years to obtain and cannot be bought. It is the interconnection queue that regulators, not builders, control. It is the route density that makes the marginal delivery profitable for one operator and ruinous for the next. It is the installed workflow that a customer will not rip out because the switching cost is measured in operational risk, not price. These are the things that do not respond to more capital, and that is exactly why they compound.

Capital is abundant and getting more so. The scarce input in private markets is not money — it is the discipline to find the constraint and the patience to hold it.

This is why our coverage is organised the way it is. We work across the industries where fragmentation, regulation and workflow create constraints a disciplined owner can hold — the same logic that makes a buy-and-build in a fragmented, certification-gated market more durable than a faster-growing business with no defensible bottleneck. The sector is the map. The constraint is the territory.

What this asks of the work.

Finding a constraint is not a matter of taste or narrative. It is evidence work: reading the filings, the ownership records, the procurement histories and the regulatory record until the binding step reveals itself — and then testing whether it is genuinely scarce or merely currently uncontested. It is the same discipline we describe in our standards, pointed at a different question. Most theses fail this test quietly. The value of asking is that you learn which ones.

Capital is the easy part now. The scarce input is the willingness to do the work that locates the constraint before the capital is committed — and the restraint to walk away when there isn't one.