Lately when I am overwhelmed, I start thinking about how we’re all made up of tiny atoms, and how atoms are mostly hollow except for one dense nucleus in their centers, and how if an atom were size of a cathedral, nucleus will be the size of a tiny fly, and how this tiny fly is so dense that it makes up the entire weight of cathedral, where as cathedral itself has no self weight, and I say to my brain that all of this makes no fucking sense, and my brain says “nothing in this world makes sense, so stop overthinking and just go to sleep”, and I say “but this is 9 am in the morning”, but my brain is asleep already
Imagine if person B’s blood pressure reading depends on whether person A receives the blood pressure medicine in a randomized controlled trial. This will be violating Stable Unit Treatment Value Assumption (SUTVA) SUTVA states that the treatment received by an individual should not influence the outcome we see for another individual during the experiment. I know the initial example sounded absurd, so let me try again. Consider LinkedIn A/B testing a new ‘dislike’ reaction for its users, and the gods of fate chose you to be part of the initial treatment group that received this update. Excited after seeing this new update, you use this dislike reaction on my post and send a screenshot to a few of your connections to do the same, who are coincidentally in the control group that did not receive the update. Your connections log in and engage with my posts to use this dislike reaction, but later get disappointed as this new update is not yet available to them. The offices of LinkedIn are tr...
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