Discussion Guide — Chapter 17

Six prompts, in the order they work best. Each is followed by what to listen for.

1. Before we criticize anything: make the case for BPC-157. You have five minutes. Convince me a pharmaceutical company should fund a Phase I.

What to listen for: whether they can do it at all. A group that produces only "there are lots of studies" has not read §17.3. A strong answer names the consistency across four unrelated tissue systems, the coherence of the perfusion mechanism against a real bottleneck in hypovascular tissue, the reported wide dose range, the presence of control arms and blinded outcome assessment, and the fact that the papers themselves are careful. Do not let anyone rebut until the case has been made properly. If the room cannot make it, stop and re-read §17.4 together; nothing later in the session will work otherwise.

2. Which of the four structural problems in §17.5 would be solved by a bigger, better, cleaner animal study?

What to listen for: the moment someone says "none" and the room goes quiet. That silence is the chapter. Push on it: if none, then what is the function of additional animal work? A good answer is that it refines the candidate and may improve the odds a trial succeeds — it does not substitute for one. Watch for students trying to rescue the situation with mechanism ("but if we found the receptor…"); that is rule 3, and it is worth letting them run into it.

3. Here is a claim: "the trial hasn't been run because nobody can patent it, not because it failed. So the ❌ is really a rating of the funding system, not of the compound." Argue for it. Then answer it.

What to listen for: whether they concede the premise. Most of it is true and the chapter says so. The answer must not depend on doubting it. Listen for the reductio — if unfunded status upgraded a rating, every unfunded compound gets upgraded, and most of them don't work — and for the distinction between a rating as a report on evidence and a rating as a claim about reality. A student who reaches "this is a reason to want the trial run, not a reason to act as though it had been" has the chapter.

4. Someone in this room has a friend who says BPC-157 fixed their shoulder. That friend is not lying, is not stupid, and is not imagining the improvement. Explain to them why their experience cannot settle the question — and do it in a way that would not make them stop talking to you.

What to listen for: two things separately. First, the content: natural history, load modification and rehab as co-intervention, regression to the mean, expectation, and the absence of a counterfactual available to any individual. Second — and grade this harder — the delivery. Ask the room whether they would have kept listening. This prompt is where the chapter's posture becomes a skill rather than an attitude, and it is the one students remember.

5. Open PubMed. Search the compound. Apply the RCT filter, then the Humans filter. Now do the same for semaglutide. What just happened?

What to listen for: run this live; do not assign it. Listen for surprise at how fast it was, and for the realization that the responsible check most people already know how to perform — "is there a real study behind this?" — returns yes for BPC-157 and is therefore not the check that discriminates. Push toward Case Study 2's point: the pipeline is robust precisely because stage 1 is genuinely good. Then ask what check does discriminate, and make them articulate "open the methods and find the species."

6. Write the ❌ in four lines. Then read it aloud imagining the person next to you injected this morning. What would you change, and does the change alter what you asserted?

What to listen for: the distinction between changing tone and changing content. A student who softens the evidence claim has failed; a student who changes nothing has usually not performed the read-back honestly. The target is a rewrite that removes contempt and preserves every assertion — which is exactly move 6 of the dossier procedure. Close the session here. It is the chapter's thesis enacted rather than described, and it generalizes to every ❌ they will ever write.