Artistic depictions of ancient humans love a certain look: big men, bulging muscles, the whole “short king with superpowers” vibe. Michael Marshall, writing for New Scientist, points out the problem with that mental picture. Our ancestors were not bigger, not in the way pop-history posters suggest. They were actually smaller than us in both height and body mass.

That is the first jolt. If you grew up thinking prehistory meant giant, strapping men dominating the landscape, Marshall is telling you the real baseline was different: the average human form of the past was smaller in size. That means the common storyline, where physical dominance equals human advancement, is at least incomplete. The body you see in museums and textbooks is not a neutral snapshot of what early humans were like. It is an artistic shorthand for traits people expected to be there.

Why should an executive care about what ancient humans looked like? Because the way we picture the past becomes the template we use for the future. In business, strategy, and technology, leaders constantly face an “obvious narrative” trap, where what seems intuitive becomes what gets funded, hired, and defended. Prehistory art is a classic example of narrative taking over evidence. When visual culture (what people see) outruns biological and archaeological constraints (what likely happened), decisions get built on aesthetic plausibility instead of reality. If you are on a board, run due diligence, or invest in long-term bets, you want a system that does not confuse “looks true” with “is true.”

Marshall’s point is specifically about scale. Height and body mass matter because they are measurable properties that affect how humans lived: energy requirements, mobility, thermoregulation, and the kinds of tasks the body can sustain. Even without getting lost in biomechanics, the second-order implication is clear. If early humans were smaller, then interpretations of their behavior need to fit that constraint. The past did not just differ by time period. It differed by baseline human capacity.

This is where incentives and organizational behavior show up, even outside anthropology. Public-facing stories are rewarded for being legible and dramatic. “Big men, strong bodies” is easy to grasp and easy to sell. But evidence-driven reconstructions can be messier and less visually satisfying. In companies, there is a similar tension between storytelling and measurement. Marketing decks like clean arcs. Boards like simple dashboards. Teams like confident narratives because they reduce uncertainty in the short run. Marshall’s column is a reminder that nature does not care whether the story is tidy.

There is also a methodological lesson embedded in the correction Marshall highlights. Reconstructions of prehistory often start from incomplete evidence and then fill gaps using best-fit assumptions. Artistic traditions then fossilize those assumptions into something that feels authoritative. Over time, the image becomes “common knowledge,” even when the underlying logic shifts. Executives deal with the same pattern in markets: a model becomes a myth once it is repeated often enough. Later, when better data arrives, the market has to scramble to update its mental models. The painful part is rarely the update itself. It is the earlier certainty.

For decision-makers, the strategic stake is not that humans were smaller in prehistory. The stake is the mechanism. If you allow attractive visuals to dictate what you believe about the underlying system, you will misjudge capability, trajectory, and risk. In governance terms, that can mean overconfidence in simplistic indicators, underinvestment in validation, and slower reaction when facts diverge from the story.

Marshall is not asking readers to worship smallness. He is correcting a widespread cultural expectation. That correction matters because it shows how easily we can turn a likely misunderstanding into a default framework. If you want your team to see clearly, treat “obvious” images as hypotheses, not conclusions. The short kings of prehistory may not match the poster on the wall, but the evidence-driven version is better for everyone who has to make decisions under uncertainty.