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The Focusing Question

Core principle from The ONE Thing book: 'What's the ONE Thing I can do such that by doing it everything else will be easier or unnecessary?' This question helps identify the single most impactful action in any area, creating sequential success through focused effort.

Last updated: 2026-03-20 17:39

The Question

"What's the ONE Thing I can do such that by doing it everything else will be easier or unnecessary?"

This deceptively simple question, from Gary Keller's bestselling book "The ONE Thing," cuts through complexity to identify your highest-leverage action.

How to Use It

Apply to Any Area

For your career: "What's the ONE Thing I can do for my career such that by doing it everything else will be easier or unnecessary?"

For your health: "What's the ONE Thing I can do for my health such that by doing it everything else will be easier or unnecessary?"

For your business: "What's the ONE Thing I can do for my business such that by doing it everything else will be easier or unnecessary?"

Add Time Frames

Why It Works

The Domino Effect

Success is sequential, not simultaneous. Like dominoes:

The 80/20 Principle on Steroids

Examples

Entrepreneur

Question: What's the ONE Thing I can do for my startup? Answer: Get the first 10 paying customers Why: Validates product, generates revenue, provides feedback, creates testimonials

Student

Question: What's the ONE Thing I can do for my grades? Answer: Master active recall study technique Why: Improves retention across all subjects, makes studying more efficient

Health

Question: What's the ONE Thing I can do for my fitness? Answer: Establish consistent morning exercise habit Why: Boosts energy, builds discipline, compound health effects

Common Mistakes

Asking Wrong Questions

Instead of: "What are all the things I need to do?" Ask: "What's the ONE Thing?"

Instead of: "How can I do everything?" Ask: "What can I do such that everything else becomes easier or unnecessary?"

Not Going Small Enough

If your answer feels overwhelming:

The Six Lies This Exposes

  1. Everything matters equally - It doesn't
  2. Multitasking works - It doesn't
  3. A disciplined life - Habits beat willpower
  4. Willpower is always on will-call - It's finite
  5. A balanced life - Success requires imbalance
  6. Big is bad - Thinking big is essential

Integration with Time Management

Daily Planning

  1. Ask the question each morning
  2. Identify your ONE Thing for the day
  3. Time block it first, before anything else
  4. Protect that time fiercely
  5. Everything else is secondary

Weekly Planning

  1. Identify ONE Thing for the week
  2. Break into daily ONE Things
  3. Schedule them in advance
  4. Review and adjust

Goal Setting

  1. Start with lifetime goal ONE Thing
  2. Work backward: 5 years, 1 year, month, week, day
  3. Create connected chain of dominos
  4. Focus on the very next one

Power of Sequential Success

Rather than trying to do everything at once:

  1. Identify the first domino
  2. Focus exclusively on it
  3. Complete it fully
  4. Move to the next one
  5. Repeat

Each success builds momentum for the next.

Practical Applications

For Projects

"What's the ONE Thing I can do for this project such that by doing it everything else will be easier or unnecessary?"

Might reveal:

For Relationships

"What's the ONE Thing I can do for my relationship with [person]?"

Might reveal:

For Learning

"What's the ONE Thing I can learn such that by learning it everything else will be easier or unnecessary?"

Might reveal:

Conclusion

The Focusing Question is a mental model that cuts through the noise to identify what truly matters. By asking it consistently and acting on the answer, you create extraordinary results through focused, sequential effort rather than scattered activity.

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