You’re halfway through your third Zoom call of the day, your Slack is lighting up, and you just remembered—again—that you still haven’t followed up on that proposal. You’ve thought about it five times today but it hasn’t moved an inch. That’s not “staying on top of it.” That’s an open loop.
There’s usually an inverse relationship between the amount something is on your mind and how much progress you’re making on it. The more something lingers—looping in the background of your brain—the more likely it’s stuck in some way, and your brain is burning mental energy trying to keep it alive.
What GTD calls an “open loop”
In GTD terms, an open loop is any commitment—big or small—that your brain is still holding onto because you haven’t clarified what it means or what to do about it. These open loops sneak in as mental pings while you’re in the shower, on a call, or trying to fall asleep. They feel productive, but replaying them doesn’t move them forward. It just drains your mental battery.
You don’t need to finish it. You need to define it.
Here’s the good news: you don’t have to finish something to get it off your mind. What you do need to do is:
- Clarify what the final successful outcome is
- Decide the very next action required to move toward that outcome
- Put reminders of the outcome and next action in a system you trust
Until you do those things, your brain still has the job of remembering, reminding, and deciding—on repeat. And unless you have a system you genuinely trust to hold those reminders for you, your mind will keep that job by default.
From vague to actionable
Let’s say someone on your team asks you to look into a new tool for project tracking. That might just sit in your head as “figure out tool,” which doesn’t help. What’s the actual outcome? Better get that clear—are you comparing features, running a test, recommending one?
Put “Evaluate project tracking tools” on your Projects list. Then ask: what’s the next action?
Maybe it’s: “Text Jim to ask what tool his team uses.” That goes on your Next Actions or Calls list—somewhere you’ll actually see it when it’s useful.
Loop closed. Brain relieved. Project will move forward.
Modern work is full of half-baked mental commitments—DMs you meant to reply to, browser tabs you’re “keeping open,” conversations you need to follow up on. Your brain is not a good place to manage any of it.
