By CHADI NABHAN MD MBA
Dr. Chadi Nabhan, MD, MBA
Life is busy, yet we somehow find time to stay engaged on social media, remain engrossed in the 24/7 news cycle, and continue our futile efforts to resist clickbait. While social media can allow us to mindlessly scroll through feeds, it also provides an avenue to provoke vigorous dialogue, however diverse, controversial, or even rooted in unfettered biases. These exchanges have served as the primordial soup for a virtual friend or foe-ships. Tense and argumentative Twitter exchanges are especially entertaining given the challenges in justifying a position in fewer than 280 characters. Thus, tweetorials have emerged to explain a point of view via a thread of comments since it is not always easy to do so in 1 or 2 tweets. The longer the tweetorial, the more heated the debate. What I am trying to get at here, somewhat obtusely, is the concept of surrogates.
I have already suggested a surrogate. Length of a tweetorial is a surrogate for degree of controversy of the topic. Meaning, length is a surrogate, a proxy. We are surrounded by surrogates. Longer wait lines at restaurants and bars imply a hipper joint or tastier menu. My child being extra nice to me is a surrogate for him wanting more time on electronics. Not a day goes by without folks arguing about surrogate endpoints. I wanted to dig deeper into surrogates and since I am a physician, I’m focusing on surrogates in medicine. Apologies to those who thought I would be discussing restaurants or exotic trips.
I want to make sure my definition of surrogates is accurate: Merriam-Webster dictionary for enlightenment. The first use of the word “surrogate” was in 1533, B.T. (“Before Twitter”). A surrogate is defined as “one appointed to act in place of another” or “one that

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