Listen to this essay 26 minute listen Every historian knows that most of the past is lost to us. We just don’t know what most people in the past thought or did, and neither are their names known to us. How much knowledge do we have, in fact? Is it 10 per cent, or 1 per cent, or 0.1 per cent? Perhaps less often acknowledged is the fact that we don’t have even 10 per cent (or 1 per cent, or 0.1 per ...