Why truth still matters — even when usefulness is the axis

A natural objection to the usefulness framing: if we evaluate memes on usefulness rather than truth, why care about truth at all?

The answer is that truth isn't eliminated. It's demoted — from the evaluation axis to the substrate.

Truth is the ground, not the axis

The Kresy families' heuristic "invest in portable capital" is useful because it's true that material wealth can be seized. If that weren't true — if property had never been confiscated — the strategy wouldn't have compounded. It would have been a useless heuristic dressed in pragmatic clothing.

Truth is the environment your heuristics run in. Strategies that ignore it break when reality pushes back.

This means truth matters, but instrumentally — in three specific ways.

At system boundaries

When your heuristic meets physics, markets, or other people's behaviour, truth is the constraint. A false-but-useful belief works until the environment shifts and exposes the falsehood.

A startup founder who believes "if I build a great product, customers will come" holds a useful-seeming meme — it directs energy toward something in the control bucket. But if the underlying claim isn't true enough (great products frequently fail without distribution), the strategy breaks at the system boundary where product meets market.

The meme felt useful. It directed energy. It compounded — until it didn't. The failure point was truth.

As a durability filter

True strategies tend to be robust across contexts. False-but-useful ones tend to be fragile, context-dependent, and prone to sudden failure.

This is what makes the agency hypothesis so striking. The heuristics transmitted by the Hungarian and Kresy families persist across centuries and political systems — feudalism, communism, market capitalism. That kind of durability is a strong signal that the underlying strategies are grounded in something real about how the world works, not just locally useful accidents.

A meme that works in one context but fails in another was probably useful-but-false — it happened to align with reality in a specific environment but wasn't tracking anything fundamental. A meme that works everywhere is probably useful-and-true — it's tracking a deep regularity.

Durability is a proxy for truth. The longer a heuristic compounds, the more likely it is that it's grounded in something real.

As a second-order check

The usefulness framing changes the order of questions, not the set of questions.

Old order: Is this true? → Is it useful?

New order: Is this useful? → Is it true enough to keep working?

The second question matters. When a useful-seeming strategy starts failing — when the compounding stalls or reverses — the most common reason is that it was built on something that wasn't actually the case. The strategy was locally useful but globally false.

"Is it true enough?" is a more tractable question than "is it true?" because you're testing against observed results, not against some abstract correspondence with reality. You're asking: does this heuristic keep producing results across different contexts? If yes, it's true enough. If it breaks when the context changes, something in the foundation was wrong.

The danger of dropping truth entirely

Pure pragmatism — evaluating only on usefulness with no truth check — leads to a specific failure mode: strategies that work until they suddenly don't.

A cult leader's heuristics might be useful to followers in the short term — they provide identity, community, purpose, direction. All four rewards from the parasitic meme test. The memes direct energy, they feel productive, they even compound for a while. But they're built on claims that aren't true, and when reality intrudes, the whole system collapses at once.

The truth check prevents this. Not as the first question — a cult member asking "is this true?" is already inside the meme's immune defence system and will get nowhere. But "is this useful?" followed by "has this stayed useful across different contexts?" followed by "what would have to be true for this to keep working?" — that sequence can reach places that a direct truth inquiry can't.

What this means for the framework

Truth is what separates durably useful memes from temporarily useful ones. You evaluate on usefulness. You pressure-test on truth.

The Kresy families didn't philosophise about whether their heuristics were true. They observed that they worked — across displacement, across political systems, across generations. The durability was the truth test. The compounding was the verification.

That's the relationship: usefulness is how you evaluate. Truth is why some evaluations hold up and others don't.