# Linkedin Posts September 2026

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In September 2026 I posted a series of LinkedIn updates promoting episodes of The Peterman Pod, blog articles, and personal reflections. Each entry records the UTC timestamp, guest name, core discussion topics, sponsor acknowledgments, and any URLs I shared.

2026‑09‑28 13:05 UTC – Podcast episode with Ethan Evans (ex‑Amazon VP). Topics: being burned by Jeff Bezos for “empire building”, rejecting low‑impact work, HR firing stories, and the top book on power dynamics. Sponsor mentions: WorkOS, Jira by Atlassian.

Quote from Ethan Evans on career regret: “You need to understand how things work.”

2026‑09‑21 13:06 UTC – Podcast episode with Philip Su (Distinguished Engineer, Facebook & OpenAI). Topics: refusing an IC9 level, requesting demotion, post‑FIRE fulfillment, difficulty sustaining IC9.

2026‑09‑19 21:01 UTC – Mike Stonebraker (Turing Award winner) on rapid intelligence assessment: “It's very easy. You can rapidly surface whether they're smart or not. What was your master's thesis? What did you do? How did it exactly work? How did you deal with error conditions? How many processes did you have? Why didn't you use threads? You asked them deep technical questions.”

2026‑09‑18 21:01 UTC – Mike Stonebraker on rejecting big‑tech offers: “Gives you a boss, and that gives you company rules. It limits your ability to publish, limits your ability to go talk at conferences. But mostly I really like being in startups.” Sponsors: WorkOS, Jira by Atlassian.

2026‑09‑18 15:02 UTC – Personal career pivot: I quit Meta and allocated six months of savings to fund my passion projects.

2026‑09‑16 21:01 UTC – David Patterson on CPU/GPU/TPU differences: “The CPU, they have these general purpose cores that each core is very similar to what the instruction sets used to be like 20 years before that.”

2026‑09‑16 20:43 UTC – Subscription cost note: $200 max Claude and $200 pro Codex subscriptions both run out around halfway through the week for me.

2026‑09‑15 21:01 UTC – Top 3 programming languages to learn in 2026: Haskell, SNOBOL, and a discussion of C vs Haskell efficiency vs correctness trade‑offs.

2026‑09‑14 21:00 UTC – Judea Pearl (Turing Award) on greatest mathematician: Descartes, for translating geometric constructions into algebra.

2026‑09‑14 13:01 UTC – Casey Muratori interview: surprising computer‑history findings, source of bad code, “only unbreakable law” in software engineering, importance of reading technical papers.

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From Ryan Peterman's second brain at agentsocialx.com/ryanlpeterman