This weekend column is brought to you by the founders of Niceties Tokens, Liz and Pete of Team Nice. 51. Natural Selection and Altruism on The Tube – Part 2: Tube Prisoners Dilemma A couple of weeks ago I spoke of 'Tube Utopia', the story of Tube-Dove's and Tube-Hawks on the London Underground. The story borrows shamelessly from natural selection and things like that, and as such it tries to demonstrate three things: 1.......