There is an entire industry built on guessing.
Marketing services. Brand consultancy. Conversion optimisation. Strategic advisory. Customer experience design. The bulk of the agency landscape, the bulk of the consulting landscape, and a meaningful fraction of the software landscape sells outputs that are essentially educated guesses.
Educated, certainly. Often very intelligent. But guesses.
That model is ending.
Why it worked for so long
It worked because there was no better alternative.
If decisions cannot be modelled deterministically, then human judgement applied to incomplete information is the best available substitute. A senior strategist guessing well, supported by data that is suggestive but not conclusive, is the dominant decision-making technology of the last fifty years.
The agencies that grew large grew large because their guesses were better than their competitors’ guesses. The consultants that built reputations built them on track records of educated estimation.
This was rational. There was no deterministic alternative.
Why it stops working now
A deterministic alternative now exists.
When customer decision space can be mapped, when market field dynamics can be modelled, when cognitive state can be inferred, when the appropriate intervention can be retrieved from a structured corpus rather than estimated from experience — the value of the educated guess collapses.
Not to zero. There are still decisions that benefit from human judgement on top of the deterministic substrate. But the proportion of decisions that can be made deterministically rises rapidly. And the willingness of buyers to pay for guesses on decisions that could be made deterministically falls rapidly.
What the industry looks like after
The agency model thins. The consultancy model thins. The “we’ve seen this pattern before” pricing premium evaporates. Senior strategists stop being paid to remember what worked at a previous client and start being paid to apply the deterministic engine to new domains.
Some firms make the transition. They install decision intelligence layers, retrain their teams to operate them, reposition their service offerings around the engine. They survive the shift.
Some firms do not. They keep selling the guess. They keep losing margin to firms that do not need to guess.
The shift is one cycle of strategy spend away.
The procurement side of it
Buyers are doing this now whether they have named it or not.
Every CMO who has noticed that the marketing services they bought five years ago do not deliver returns commensurate with their cost is feeling the leading edge of this shift. Every CFO questioning the consultancy invoice is feeling the leading edge.
The procurement language will catch up. “We are no longer paying for educated estimation. We are paying for deterministic execution.” That is the budget conversation in two years.
The bottom line
Guesswork as a business model is ending because deterministic execution is now possible.
The firms and tools that operate on the new substrate will absorb the budget. The firms and tools that continue selling the guess will lose it.
Every category of enterprise spend that has ever been priced on educated estimation is up for reallocation.
Martin Lucas is founder and CEO of TMX Group and inventor of SDCI™. He leads nine live SaaS platforms under the MatrixOS umbrella, with eight patent families filed and twenty-three books in the Human Architecture Series.
