04/10/2026
Nearly half a million years ago at Kalambo Falls, hominins constructed a jointed wooden structure - two massive logs deliberately shaped and notched to interlock with each other. Michael Button draws out the cognitive implications of that single act precisely. To build something like that you need planning. You need foresight. You need the ability to imagine a completed structure before it physically exists. That is not primitive behavior. That is modern cognitive architecture - and it pushes organized engineering back hundreds of thousands of years beyond where the conventional timeline places it.
The detail Michael finds equally significant is what the structure implies about the tradition behind it. Nothing appears in the archaeological record fully formed. The joinery at Kalambo Falls was not an accidental first attempt - it was the visible tail end of a long line of accumulated woodworking knowledge that clearly predates this single surviving example. In the context of potentially a million years of human or humanlike intelligence, Michael argues that Kalambo stops being astonishing and becomes expected. If modern cognitive architecture existed that far back, then half a million years of structural experimentation, innovation, and accumulated knowledge that left no surviving trace is not just plausible - it is, he argues, pretty much inevitable.