One pagers are really underrated in general. I have a ruby one for whenever I take a flight that doesn't have wifi. I quickly load it before takeoff and read it

One pagers are really underrated in general. I have a ruby one for whenever I take a flight that doesn't have wifi. I quickly load it before takeoff and read it joyfully, always feeling refreshed and usually learning something(s) new. Also there a small typo in: `"".join(["a", "B", "c"])` # 'abc'`.