Your Brain Has a Context Window. Treat It Like One.

Think of your brain’s context window like an AI’s context window.

AI models perform best when the context is concise and relevant. Let the conversation run too long and they start to skim. They hallucinate. They can’t hold every detail in memory.

Your brain works the same way. Pile on too many open loops, browser tabs, and unresolved decisions, and your cognitive performance degrades. You start skimming your own life. Errors creep in. Fatigue shows up. The fix is to regularly clear the context by offloading thoughts to a trusted system.

How many open loops are you carrying right now?

Brooks and I adapted Sophie Leroy’s concept of attention residue into a daily practice. Attention residue is the cognitive drag left behind when you switch tasks without fully closing the previous one. The distraction that pulled you away leaves residue. The unfinished business from the first task bleeds into the second, and now you’re doing two jobs with one brain.

Treat every task switch like a computer process. Close the first loop by documenting the next steps. Then open the new one. That keeps mental RAM from filling up with half-finished thoughts.

How many open loops are sitting in your head right now? An open loop is an email you haven’t decided on, a task you left mid-sentence, a ping you answered while the original work was still loaded. Each one occupies space. Enough of them and you start skimming.

Pause for 30 seconds

When I get interrupted mid-task, I don’t just switch contexts. I pause for 30 seconds and write down exactly where I left off and what the immediate next step is.

I think of it as defragging a hard drive. You’re organizing the mental blocks so you can retrieve them later without the search cost of trying to remember where you were. I use WisprFlow to do this instantly, voice-to-text, so the capture doesn’t break flow. Typing a long note would be its own context switch. Voice keeps it to those 30 seconds.

Set up a quick-capture shortcut in your task manager or note app for interrupt notes. Hit it, dump the location and the next action, then go handle whatever pulled you away. When you come back, you’re not reconstructing. You’re reading.

Audit your current open loops while you’re at it. Put a next action on each one before you start new work.

Build a library, not an airport

It’s hard to sleep in a noisy airport. It’s easy in a quiet library.

Same brain. Different room.

James Clear’s Atomic Habits makes this point about environment, and it applies to focus as much as sleep. A cluttered desk creates visual noise that competes for your attention residue. A hot mess inbox creates mental noise. Designing the environment (a clean desk, scheduled notification blocks) makes focus the path of least resistance.

Do a 5-minute desk clear. Turn off non-essential notifications for the next deep work block.

Are you the person who feels compelled to respond instantly? If you’re a natural people-pleaser, you’re fighting your own biology. Schedule notification blocks instead of hoping you’ll ignore the badge count through sheer discipline.

Brooks runs this as a personal routine because of global team distractions. He turns off Slack, Teams, and email notifications during deep work hours and after work hours. He checks messages during designated windows, which cuts the constant drag of attention residue from incoming pings. Incoming pings are the airport. Designated windows are the library.

Set Do Not Disturb on your phone and computer for the next 4 hours. Give yourself a library.

Touch it once

Marking an email as unread to get back to it later is mental laziness. It creates attention residue. Every unread email is an unresolved decision sitting in the context window.

Brooks and I talk about the difference between fake work and strategic prioritization. Fake work is responding to everything. Strategic prioritization is making the decision now so you can spend attention on the work that actually matters.

If you’ve used GTD, you’ll recognize what comes next. Process every email immediately.

Delete. No action, no keep. Gone.

Delegate. Someone else owns the next step. Send it, drop the loop.

Do. If it takes less than 2 minutes, handle it now.

Defer. Move it to a task list with a clear next action.

Those 4 Ds force the decision in the moment. They clear the mental loop so you can prioritize instead of reacting to whatever feels urgent. Clear your inbox today using all four. Leave nothing marked unread as a maybe.

Dump the RAM before you leave

At the end of my workday, I spend 5 minutes dumping all unresolved thoughts, half-finished tasks, and tomorrow’s priorities. I do it with WisprFlow. AI agents organize what comes out.

That clears the RAM so I can leave work without carrying mental residue into personal time. Half-finished tasks will follow you there if you don’t dump them. The dump also sets up a clear starting point for the next morning, which reduces the friction of getting started.

You can dump verbally or in text. Trusted system or an AI agent. What matters is that the loops live somewhere you trust.

Try a context reset tonight. Dump every unresolved thought into a note-taking app or an AI agent and let it organize them for tomorrow.

Don’t rebuild your whole system this afternoon. Tonight, before you shut the laptop, take 5 minutes and voice-note everything still on your mind. Tomorrow you open a clean context window.