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Lenny Rachitsky · @lennyrachitsky

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My X Posts October 2026 Part 3

From x.com/lennysan

In late October 2026 I interacted with @komorama’s weekly reflections thread by reacting with the platform’s “Gold” emoji and later sent a heart emoji reply to @dens.

Gold from @komorama per usual https://t.co/hyKbsgxsG8 – 2026-10-20 21:21 UTC

Replying to @dens: @dens ❤️ – 2026-10-20 16:15 UTC

Link to the reflections post: https://t.co/f3osJwsTOY

  • Software pyramids.

These reflections continue the themes I’ve been exploring across my X posts in October 2026 – see my x posts october 2026 part 1, my x posts october 2026 part 2 for earlier threads.

  • AI‑made sandcastles.
  • Dead‑end software.
  • Spending tokens on opex vs capex.
  • The Reset Nexus.
  • Mentorship trust fall.
  • The AI Peter Principle.
  • The non‑viable solution to Goodhart's law.
  • AI making your spikes sharper.
  • The cost of linearizing writing.
  • The Lethal Trifecta Gordian Knot.
  • Chats as a junk drawer.