Our ancestors may have very nearly gone extinct. Around a million years ago, there were just 1300 humans left and it stayed that way for over a hundred thousand years. This is the dramatic claim of research into the genetic diversity of our early ancestors – though some scientists disagree with the conclusions.
. The company behind it, Synchron, is focusing on medical uses like this for brain implants, rather than more outlandish superhuman technology. Beer goggles; when you’ve drunk just enough alcohol that everyone starts to look more attractive. It’s a well-known phenomenon, but is it actually real? A study that got its participants a little tipsy has some answers.