Jack Tiller
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Latest articles
Conditions and diseases

Most people, including plenty of us still in medical training, know the basics of a PET scan on the surface. PET stands for positron emission tomography; patients get injected with a radioactive glucose tracer called fluorodeoxyglucose (FDG), and areas of…
Most people, including plenty of us still in medical training, know the basics of a PET scan on the surface. PET stands for positron emission tomography; patients get injected with a radioactive glucose tracer called fluorodeoxyglucose (FDG), and areas of high metabolic activity light up on the scan. What gets left unsaid is everything underneath it: what a positron actually is, why it exists at all, and how the answer …
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Why the physics of a PET scan depends on antimatter
Medical education

ChatGPT once diagnosed me with chronic curiosity. I've been thinking about that diagnosis ever since, so I wanted to sit with it a little longer. Typically, the word "chronic" comes with a bad connotation. All it really means is that…
ChatGPT once diagnosed me with chronic curiosity. I’ve been thinking about that diagnosis ever since, so I wanted to sit with it a little longer.
Typically, the word “chronic” comes with a bad connotation. All it really means is that something is going to be with you forever but won’t shorten your life. If anything, chronic curiosity might extend mine; it means my brain is always working harder than baseline. …
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Chronic curiosity is a diagnosis worth keeping for life
Conditions and diseases

The following piece is an AI-generated character study based on the author’s own self-reflection. He is the kind of person who learned early that being noticed was a form of safety. Not necessarily through anything dramatic, just enough comparison, enough…
The following piece is an AI-generated character study based on the author’s own self-reflection.
He is the kind of person who learned early that being noticed was a form of safety. Not necessarily through anything dramatic, just enough comparison, enough hierarchy, enough subtle reinforcement that visibility became tied to worth. Somewhere along the way, he internalized a quiet equation: If I am seen, I matter; if I am not, I disappear.
What …
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Needing external validation is a strategy that fails
Medical education

I. Intake notes Subject presents as a high-functioning adult with a long history of academic success and an unusual number of existential questions for someone who technically has their life together. Primary characteristics include intellectual curiosity, restlessness, and a persistent…
I. Intake notes
Subject presents as a high-functioning adult with a long history of academic success and an unusual number of existential questions for someone who technically has their life together. Primary characteristics include intellectual curiosity, restlessness, and a persistent suspicion that the conventional path laid before them (while impressive) might also be some kind of elaborate trap. The subject is not failing by any objective metric. In fact, the opposite …
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The reluctant achiever: Navigating identity in medical training
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