Focus session · problem solving · 90 min

Deep work timer: 90 minutes of problem solving (distant thunder), when you want to finish something

One block of problem solving with distant thunder underneath. One full ultradian cycle, for work that needs a long runway.

90:00

Press start. The timer keeps time so you do not have to look at a clock.

If your legs are crossed, uncross them. Small changes count. Wanting to finish something is a better motivation than wanting to relax. We'll go through it in order, without much decoration.

1 Before you start

  • Close the door, or put headphones on, whichever signals "working" to the people around you.
  • Accept that the first five minutes will feel like wading. Wading counts.
  • Go to the toilet first. It sounds trivial until you are mid-sentence.
  • Tell yourself the goal is time spent, not output produced.
  • Turn off notifications for the next block, not just to silent.

2 While the timer runs

  • When you catch yourself re-reading the same sentence, stop and write down what you were looking for.
  • The first urge to stop usually arrives early. Sit through it once and the second one is quieter.
  • If your attention keeps sliding, shorten the next block rather than abandoning this one.
  • When you get an idea for something else, park it. Do not follow it.

3 When it ends

  • Say the session is finished, out loud if you can. It marks the boundary.
  • Take the break away from the screen, even if it is just the other side of the room.
  • Leave the desk tidier than you found it. Two minutes now saves ten later.

4What to put on

distant thunder — Low rumbles with long gaps. Suits people who find sudden noises more distracting than constant ones.

This page is a tool, not a course. Nothing is tracked, nothing is saved, and nobody is told whether you finished.