Everything needs to change

TL;DR

Modern IDEs aren't built for agentic multi-project coding, so we need a fundamentally bigger orchestration layer beyond terminals and editors.

Key Points

• 1.The evolution from text editors to IDEs followed growing complexity. Tools like Eclipse, Sublime Text, Atom, and VS Code progressively integrated compilers, linters, debuggers, and runners — culminating in VS Code's project-aware configuration via its .vscode directory.
• 2.VS Code's killer feature was shaping itself around the codebase. A unit-test play button in TypeScript repos at Twitch in 2018 finally converted the narrator from Sublime Text, showing how repo-level config could tailor the editor per project.
• 3.Agentic coding has broken the one-editor-one-project model. Agents can run for hours across multiple codebases simultaneously, making per-project editor windows obsolete and turning tab/workspace management into a cognitive nightmare.
• 4.Karpathy's post challenged the assumption that CLIs like Claude Code and Codex are the destination. The narrator argues the answer isn't going smaller into terminals — it's going bigger, coining the need for a 'bigger IDE' that transcends current paradigms.
• 5.T3 Chat and Semox represent early but incomplete steps toward this vision. Semox (a libghost-based terminal) offers multi-space browsing and terminal tabs per project; T3 Code adds multi-project UI and integrated terminals, but both still lack cross-project browser integration and horizontal multi-chat.
• 6.The ideal future IDE would be one app orchestrating everything. It would manage multiple projects, worktrees, agent instances, terminal tabs, browser views (localhost + GitHub), and chat — eliminating the mental-map overhead of linking scattered windows across separate apps.
• 7.No one has solved this yet, and the opportunity is enormous. Just as full-stack TypeScript safety took years after TypeScript's adoption, agentic tooling needs a generational rethink — and the narrator explicitly invites community builders to beat T3 Code to the answer.