Now a rapidly growing body of data indicates that not only were early Homo sapiens every bit as self-aware and purposeful as we are now, but also that Homo sapiens have been around far longer than was ever imagined before. As new archaeological discoveries in southern Africa and beyond also show, people were already making all sorts of clever things tens of thousands of years before the supposed cognitive revolution. And, taken together with research conducted by anthropologists among geographically isolated peoples who continued to make a living as foragers in the twentieth century, this data
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