59: Why Ancient People Didn't See the Color Blue

Here's a philosophical question for you. If a color doesn't have a name, can we still see it?   Many years ago, the human eye evolved to give us the ability to see about a million colors.   That's a lot.   Then how come, until very recently, nobody saw or even heard of the color blue?   Well, it's because blue just -- didn't exist yet.   Let's find out why. --- Support this podcast: https://podcasters.spotify.com/pod/show/thewhyfiles/support