Skeleton of Homo naledi, found in the Rising Star cave system in South AfricaJohn Hawks/ShutterstockAustralian Museum, University of Sydney, BreakThru FilmsIt is after 10pm and I am on a cycleway in Sydney returning from dinner with friends. It is a warm evening in the week before Christmas and people are still out on the streets, gathering for end-of-year drinks.As I cycle, Im using my Air Pods to listen to a podcast broadcast by Bluetooth from my smartphone. The podcast, downloaded from invisible Wi-Fi, is about the origins of humanity. It strikes me that,
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