Most of modern medical science is quackery and pharma companies trying to milk the populace for profit. Trauma surgery is quite good, and antibiotics and vaccines are important. Other than that, I'm pretty sure going to the gym and the salad section of the grocery is much more important than going to the doctor.
I'm not even sure whether Taleb's style of writing is meant to communicate much at all, what's the point of all this phony formalism? http://www.fooledbyrandomness.com/medconvex
I'd like to see Taleb acknowledge at least that medical and financial estimation risks have a different character. Financial mispricing is adversarial, whereas you'd have to be more cynical than me to think doctors are always trying to get you to take the maximum care they can sell you.
The problem is that Taleb is packaging up this standard advice and pushing out as some wisdom he has that he wants to impart to the masses.
Thanks for that. I was blocked for correcting him (I can't remember about what, it was years ago).
Also, this "only go if necessary" is bad advice unless you are a doctor and can tell, from your symptoms, whether it is or not necessary to go. Make an appointment or show up at the ER and let the doctor decide whether you need help or not.