Focus session · problem solving · 90 min

A 90-minute block for problem solving, with a fan or air conditioner, on a low-energy afternoon

A single 90-minute block for problem solving — before looking anything up.

90:00

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

If you're tired, you can let that be true. Tired is allowed here. Low-energy afternoons are what this was written for. Straight through, at a normal pace.

1 Before you start

  • Turn off notifications for the next block, not just to silent.
  • Remind yourself that you are allowed to produce something mediocre in the first pass.
  • Dim the screen slightly. Bright screens make long sessions harder than they need to be.
  • Lower the bar until starting feels almost silly, then start.
  • Decide now what you will do when the timer ends. Otherwise the decision will eat the first five minutes.

2 While the timer runs

  • If you are stuck, say the problem out loud. It changes what you can see.
  • Notice the moment your hand moves toward your phone. That moment is the whole skill.
  • When the timer feels too long, look at it less. The clock is not the task.
  • If a thought will not leave, give it one line on the page and return to the task.

3 When it ends

  • Decide whether the next block is the same task or a different one. Do not drift into it.
  • Write down the question you could not answer, so it has somewhere to live.
  • Do not immediately open the thing you were avoiding. Give the block a proper end.

4What to put on

a fan or air conditioner — A constant mechanical hum with no variation. The lack of change is the point — nothing in it asks for your attention.

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