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Sean Geiger

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Substack
PricingOnly free issuesPublishesInfrequently
Issues10Founded2 years agoLast Issuea month ago
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Latest Issues

Everyone Has Something

This week Midjourney announced a machine that scans your entire body in about a minute. You step into a shallow pool and a platform lowers you through a ring of submerged ultrasound sensors, and a minute later there is a map of everything i...

a month ago
4

The Montana Experiment

Brody DeVault is three years old. In January, his parents learned he has Creatine Transporter Deficiency, an ultra-rare metabolic condition that prevents creatine from being transported into his cells. There is no approved treatment.

“We l...

2 months ago
5

Crossing the Pacific: Part 2

This is the second part of my posts about sailing across the pacific ocean. If you haven’t read Part 1, start there.

Twelve hours into our crossing of the Pacific Ocean, a storm blew in and ripped our front sail to shreds.

The forecast...

4 months ago
10

A Brief History of Oral Peptides

Semaglutide is a peptide. Your stomach’s entire job is to destroy peptides.

It’s the whole point of your stomach. Your GI tract is a 30-foot disassembly line for proteins. Acid denatures them, pepsin cleaves them, trypsin finishes the job....

5 months ago
21
3

Crossing the Pacific: Part 1

In 2023, I sailed across the Pacific Ocean, from San Francisco to Sydney, Australia, with my best friend Matthew. We had basically never sailed before we left and figured it all out along the way. We met a ton of fantastic people on our tri...

7 months ago
14
1

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