By sheer providence today I was at a series of public lectures in science in Sheffield. After buzzing about The BBC's "The Secret Life of Chaos" all last week: one of the speakers was the man who appeared in it - Dr Andrea Sella (1:40 episode 2) - and he performed the Berlusov experiment live on stage! Absolutely mad day. Completly undersold by the college. If I'd known this was coming I'd not h…