Nassim Nicholas Taleb @nntaleb
I learned a lot from @pkedrosky & @hjluks. My summary (from data): + (Recreational) cycling brings ~24 HR bpm > equivalent walking but, critically, you don't know it & therefore can do it for a long time. + Running brings ~40-70 BPM > recreational walking but you really feel it. — PolitiTweet.org