the power of arithmetics

I have forgotten maths ! I used to love maths, even when it was explained to me as a purely theoretical endeavour. It was structured, regular, predictable, and if you followed the rules, the results were stunning. Now, had it been taught with real life examples, I believe I would have chosen to dwelve into it for the rest of my adult life.
Back to the video. A fantastic metaphora on video n.3 on the bottle full of bacteria, and our inability to realise when we are 1 minute before 12.