No smoking just about everywhere here OT. I stopped whilst in hospital. The patients had to go outside, as you say to smoke. The assorted wounded group outside grew smaller in the frosty weather !! But I'm glad I did. Regular walks now and filtered water. I feel great again.
I just called the Copenhagen "Quit Smoking" hotline. It sounds pretty reasonable You chew for ten years until you have lost all your teeth But if you save the receipts from all the tins you bought They give you a free prescription to Chantix. So it's basically win/win
100s of years ago you are right everyone drank beer as the water was foul. Nowadays they put aluminum ( aluminium ) sulphate in to make the water look clean and fluoride. Fluoride if you look on the net makes people docile leading to alzheimers and does nothing for their teeth. Sorry folks I am digressing. The difficulty I find playing with trends is to determine where the U bend is. There are lots of fake bends and then suddenly the real one. In hindsight it looks obvious of course.
For those of you looking for evidence in support of trend following, this recent article (40% annualized returns!) might be of interest: