The Memory System That Lasts Has One Inbox and Almost No Folders
One front door for ideas, software to do the filing, and no guilt when life gets in the way.
Geeky Gadgets · Why 2026 Is the Perfect Time to Build a Second Brain with Simple AI ToolsNate B. Jones, who describes how to build an external memory he calls a second brain, advises keeping the design spare and planning from the start for easy restarts after periods of inactivity.
His first rule is to give every stray thought the same front door. Pick a single app to hold every stray note and idea, and do not vary it. In his setup, that is a dedicated channel in Slack, the workplace chat app, where you can drop a thought in seconds without breaking what you are doing.
Second, resist adding lots of folders. Keep the number of categories and data fields small, and let software do the filing. In his setup, an AI helper such as Claude or ChatGPT sorts what comes in, stores it in Notion, the app for keeping ordered collections for projects and to-do lists, with connections handled by automation software such as Zapier. That automation covers reminders, sending each item where it belongs, and producing regular recaps that turn old notes into usable guidance.
He also advises keeping storage, processing, and the part you actually use as separate jobs, to keep things simpler and run more smoothly. Just as important is to build in easy ways to fix mistakes, so a misfiled idea does not make you distrust the whole thing, with checks like a log of changes or a score showing how sure the AI was.
A system built this way still works after time away, without needing a big cleanup before you can add the next idea.
If you want to try it, start with the inbox. Create one channel or one notes app, and put everything there.
Questions people ask
What should I actually use as my one inbox?
Use whatever you already open many times a day and can type into in under ten seconds. For many people that is a chat app like Slack, the notes app on a phone, or an email draft to yourself. The exact tool matters less than using only that one place for new captures.
How few categories should I have?
Start with three to five broad buckets, such as projects, tasks, ideas, and reference. You can always split one later if it gets crowded. Too many folders up front creates decisions every time you save something, which is what causes people to quit.
What do I do when the AI files something wrong?
Correct it in plain language where you see it, and keep a simple change log if your app supports version history. Most modern notes and database apps let you move an item and leave a record of the move. Frequent corrections in one area are a sign that a category name is unclear and should be renamed.