After 90 min: You'll complete demanding work in 90 minutes that previously took all day.
Master Deep Focus
After 90 min: Consistently enter and maintain 4+ hour deep focus sessions with 90%+ quality output
What you need
The 90-Minute Plan
Learn the conditions for deep focus: clear goal, immediate feedback, challenge-skill balance. Eliminate distractions ruthlessly
Silence phone (or leave room). Close browser tabs. Use website blockers. Temperature at 68-72°F. Use white noise if needed
Work 25-50 minutes intensely, then 5-15 minute break. Track completed sessions. Gradually increase focus window to 90 minutes
Create pre-focus ritual: specific location, beverage, music. Work at same time daily. Your brain learns to drop into focus automatically
Log focus sessions, depth level, and output quality. Identify patterns. Adjust timing, environment, and tasks. Measure improvement
The first 15 minutes are hardest. Push through resistance. Once flowing, you won't want to stop
Keep Going
You might also try
After 90 min: Read at 600+ words per minute while retaining 70%+ comprehension
After 90 min: Memorize lists of 50+ items, speeches, or sequences using the ancient memory palace technique
After 90 min: Make smarter decisions 80% of the time using 10+ proven mental models