Lies, Damn Lies, and Bias

Josh, Hottie, and Fatty talk about problems in data quality, sampling bias, confirmation bias, cherry-picking, and more (including a little detour into baseball). it’s great when data bolsters your beliefs or arguments, but it’s oftentimes way more exciting and enlightening when they don’t!

Got a question you’d like to ask? Text or leave a voicemail at the Marginal Gains Hotline: +1-317-343-4506 or just leave a comment in this post!

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3 thoughts on “Lies, Damn Lies, and Bias

  1. “I have steadily endeavoured to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot resist forming one on every subject), as soon as facts are shown to be opposed to it.” — Charles Darwin

    I’ve known guys whose certainty in their own hypotheses increases not with how much they know but how little they think you know. I try to stay away from those guys.

  2. Isn’t the foundation of science that someone comes up with a hypothesis and then we experiment to prove or disprove it?
    Anyway a question for Josh, I understand that a disc wheel can produce a sail effect at certain yaw angles, If I would like to go as fast as possible in a straight line Am I better of with a tailwind directly behind me or at an angle for a better yaw angle? Or again does it depend?

  3. Please clear up what’s likely a misunderstanding on my part. On this podcast, I’ve heard the “rule of 105” to refer to the ideal ratio of rim width to tire width regarding aerodynamics. That the rim would be wider than the tire surprised me, so I’ve re-listened and would swear it’s been described as rim being 105% of tire and not the other way around.

    Cycling Tips just published an article on the new Zipp 303-S aero wheel. It features a 27mm rim “optimized around tires with a 28 mm measured width.” Doing the math, that equates to 103.7%. Please set me straight: does the rule of 105 refer to tire-to-rim ratio or rim-to-tire ratio?

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