"Is there anything like this left?" I'd actually say more likely than not, yes. There's still hundreds of things about biology we don't know and an entire ocean full of mysteries to discover.,(reply>), Consider dendrochronology, the art of dating things by comparing tree rings. We can date very old wooden things very accurately. We didn't invent it until the 19th century but you could explain how to do it to an ancient Mesopotamian in minutes.,(reply>), That's what I think too.,(reply>), We're still discovering/categorizing fungi,(reply>), Literally an ocean!,(reply>), He's not talking about discoveries that would expand scientific knowledge though, he's talking about discoveries that demonstrate principles we already understand. Like if, for example, these rocks had been missed by scientists and geologists and remained completely unknown, despite how well they prove the widely-accepted belief that the Earth is millions of years old.