Adapting lost keys, why it’s rude to say restroom, the fallen tree approach to medicine, catwalks versus runways, getting the most out of a PostIt note, how to know that there’s more to life than knowing everything, The Two Ronnies versus Schrodinger and his cat, people who change their names, reinventing the virtual window, how an orange drink could wipe out the oceans, transparency versus invisibility and more.