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WebinarNotes/wiki/sources/2026-07-14-everything-we-knew-about-software-has-changed.md

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Everything we knew about software has changed — Theo Browne (AIE)

#source

Source Metadata

  • Date: talk at AIE (year not stated in source; references Nov–Dec 2024 as recent past)
  • Raw path: raw/sources/Everything we knew about software has changed.md
  • Source type: conference talk (conclusions/notes), 16:01 — https://youtu.be/xUnRQ9vLXxo
  • Speaker: theo-browne (t3.gg)
  • Ingestion date: 2026-07-14

Core Claims

  • Models improve faster than developers can. You can't keep pace by "getting better" — you must think-wider-not-bigger and pick ideas that feel embarrassingly ambitious. "If your idea doesn't feel stupid, it isn't big enough."
  • Recent releases are qualitatively distinct eras, not increments (see ai-agent-evolution): tool-call → long-running-task → orchestration.
  • You only feel a new model's gain if you push scope to match it. Work that made sense on the prior model won't feel different on the new one.
  • Long-tenured engineers carry identity baggage (tools, language, git norms, sunk cost) that now actively holds them back — the "skeuomorphic phase" of development. See decoupling-identity-from-profession.
  • Every project category shifted down exactly one tier; a brand-new bottom tier appeared: a markdown file as executable prose. See code-as-throwaway.
  • Compete on breadth, not just depth — breadth is now viable for small teams. Be the right shape so users extend you (Slack effect).

Key Evidence / Details

  • Three model eras (speaker's framing/names): tool-call era = "Sonnet 3.5" (first reliable tool calls in a real codebase); long-running-task era = "Opus 4.5" (multi-hour tasks, self-testing; his "AI psychosis" began Nov–Dec 2024); orchestration era = "Mythos / Fable" (understands itself, spawns sub-models, verifies afterward — a prompt replaces a "software factory").
  • iOS skeuomorphism analogy: iOS 6 imitated physical objects to convince you the phone could replace them; iOS 7 dropped the pretense and got more useful. Developers are in their iOS-6 phase.
  • Identity symptoms: terminal fetishism, language-as-identity ("he writes JavaScript"), ceremonial git norms (why can't we commit .env?), guilt-merging PRs. One gift of agents: no guilt throwing work away.
  • Tier shift table: side project → shifts down; startup (his "Ping / Zoom for streamers", YC) → becomes a side project; "too big" (full-stack cloud: Vercel + auth + DB) → becomes a startup; new "too big" is unknown (train your own model? your own OS? compete with npm?).
  • "G-brain tier" = a markdown file. He replaced a PR-triage service with a markdown file piped to Codex/Claude on a 9 AM cron; by 9:15 it read four repos, prioritized the day, and shipped a static HTML file to S3.
  • Breadth vs depth: old rule — pick a vertical, go deep (Vercel vs AWS). New reality — bolt a serviceable database/platform layer into your product in a day or two of prompting; cover enough that users can start. Slack accidentally became everyone's agent platform because its shape invited extension, not because it's good.

Connections

Open Questions

  • What is the new "too big" ceiling now that orchestration models exist? (Speaker explicitly doesn't know.)
  • Model names "Mythos / Fable" are the speaker's framing — how do they map to shipped model IDs? (Fable 5 is a real current model; "Mythos"/"Opus 4.5" mapping unverified.) Status: tentative.

Change Impact on Wiki

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