The relevance horizon: how long is your value proposition good for?

Every business owner I meet can tell me, precisely, what their firm sells. Almost none can tell me how long it will stay worth paying for. That number — call it your relevance horizon — has become the most important number in your business, and most owners have never tried to estimate it.

Here is the uncomfortable mechanic behind it. Whatever you sell — drawings, code, contracts, campaigns, audits — some fraction of it is production work: the hours of skilled labour between your judgment and the deliverable. Generative AI is eating production work, in public, on a visible schedule. Not all of it, not perfectly, and not evenly across industries. But the direction is one-way, and the pace is set by model releases, not by your planning cycle.

So the question is no longer whether your value proposition erodes. It's when — and whether you find out before or after your clients do.

Run the horizon on your own firm

Try the exercise I run with owners. Take what you sold last month and ask, honestly, at each distance:

Today. Which parts of the work could a capable generalist with the best current tools produce at sixty or seventy percent of your quality? Not zero, in any firm I've looked at. Whatever fits that description is where the erosion starts.

Three to six months. One or two model generations. The capability you saw in a demo becomes dependable. The early movers in your market take pilots into production — quietly, because there is no reason to announce that your cost base just changed.

One year. Your clients have used these tools themselves, on their own work. They now have an intuition — sometimes wrong, always confident — about what things should cost and how long they should take. The pricing conversation starts happening without you.

Three to five years. The production layer of your industry is mostly commodity. What's left is what was always the real product: judgment, taste, accountability, and the relationships that carry them. Firms that spent these years practicing sell that at a premium. Firms that protected the old deliverable compete on price against machines.

Your relevance horizon isn't the date your firm dies. It's the date your current answer to "why should I pay you?" stops working.

What owners get wrong about the date

The most common mistake isn't optimism — it's the wrong kind of pessimism. Owners hear this argument and conclude the machines are coming for everything, so nothing can be done, so why start? That's backwards. The parts of your business that erode fastest are the parts you probably enjoy least: the routine production work, the third revision, the formatting, the boilerplate. What appreciates is the part you built the firm on in the first place.

The second mistake is treating the horizon as a threat to monitor rather than an asset to spend. If you can see that your deliverable commoditises in two years, you have two years to reprice, repackage, and retrain — while your competitors sleepwalk toward the same date. The horizon is only bad news if you're the last to see it.

Moving the date, or moving yourself

You cannot move the technology's date. You can move what you sell. Every firm I've seen do this well does three things: they get their leadership personally fluent with the tools — not briefed, fluent. They re-anchor their pricing to outcomes and judgment rather than hours and volume. And they start now, small and quietly, because the learning compounds and the calendar doesn't wait.

You are the expert in your domain. That expertise is not what's at risk — it's the delivery mechanism around it that's changing. The owners who thrive through this shift will be the ones who saw their own horizon early, and treated the time before it as the head start it actually is.

So: how long is your value proposition good for? If you don't know, that's not a criticism. It's the first question of the first conversation.