4 May

Beautiful piece of teaching here from Brian Cox, have a look if you have 4 minutes, about why 'time' as we mean it doesn't exist. Interestingly many (like Brian) then go on to say that looking into the sky is 'looking back in time'. That's not true, it's more amazing than that. If the light from a star took a million years to get here, it doesn't mean you're looking a million years back in time. It means that star exists right now for us, here, in a way that is different to there. If somebody you know dies, for somebody at that star they haven't even been born yet, and for something closer they're still alive. Time is relative to standpoint. https://youtu.be/-O8lBIcHre0