The Rule of One: How to grow your online business 10× faster

Sep 11, 2025

5 minutes
The Rule of One

Why “More” May Actually Be Slowing You Down

You’ve probably felt this: too many strategies, too many platforms, too many offers. Every guru tells you to “do it all.” But the truth? More often means slower growth.

That’s because of analysis paralysis. You spread yourself thin, burn energy, and confuse your audience.

The Rule of One is the antidote. By narrowing your focus, you simplify execution, amplify results, and create momentum that compounds. This isn’t just my observation—marketers, psychologists, and growth experts have been saying it for years.

  • Medium (Adam Barbaro): Brands that focus on solving one specific problem with one clear message break through noise faster.
  • Copywriting best practices: “One goal, one reader, one message, one offer, one CTA” is proven to drive higher conversions. 
  • Marketing psychology: Focused positioning builds faster trust and recognition.
  • Email marketing research: Messages that focus on a single, core idea and action drastically outperform cluttered ones.

What Is the Rule of One?

At its core, the Rule of One asks you to define one of each of the following:

  1. One platform where your ideal customer is most active
  2. One burning problem that is urgent and painful
  3. One type of customer (the one who pays and spreads the word)
  4. One powerful product or service tailored to solve that problem
  5. One irresistible offer that compels them to take action

This creates:

  • Speed — fewer choices, faster decisions.
  • Clarity — your audience gets you immediately.
  • Signal — consistency builds authority.
  • Feedback loops — iterate and improve quickly.

The Rule of One in 5 Simple Steps

  1. Pick one consumer in particular
    Don’t stop at “small businesses.” Go niche.
    Example: “Dental office managers at 2–10 chair practices.”
    Quick test: Can you identify 50 of them or find them all on one platform?
  2. Pick one burning problem
    Write it down like this:
    “They want [result] but have trouble because [obstacles].”
    Examples:
    • Coaches want to book calls but can’t get enough leads.
    • New managers want one-on-one time but lack structure.
  3. Create one product or service
    Start lean with a productized service or simple program.
    Define: goal, deadline, range ? strip away custom work.
    Examples:
    • LinkedIn Lead Sprint: 30 qualified DM conversations in 21 days.
    • Onboarding Overhaul: cut onboarding time by 30% in 30 days.
  4. Craft one irresistible offer
    Use this formula:
    Process + Outcome + Timeline + Risk Reversal + Price/Terms.
    Add power-ups: fast-start incentive, limited slots, strong guarantee.
    Example: “We’ll set up 10 sales calls for you in 30 days, or we’ll work for free until we do.”
  5. Choose one platform and stick to it
    Go where your customer already spends time.
    Options:
    • Email
    • Text (LinkedIn/X)
    • Short-form video (TikTok/Reels/Shorts)
    • Long-form video (YouTube)
    Cadence: one useful post every day, and one strong CTA per week.

Implement the Rule of One: Your 30-Day Growth Sprint

I’ve turned this principle into a step-by-step sprint—it’s what I use, what I’ve seen students implement, and what works reliably. Here’s your plug-and-play toolkit:

Week 1: Clarify and Validate

  • Talk to 5–10 ideal customers to unearth their urgent pain.
    • Ask: “What frustrates you most about [topic]? What are you already trying to fix it?”
  • Define your One-Liner:
    “I help [who] get [result] in [timeframe] without [pain] using [method].”
  • Pre-sell to 2–3 customers at a founder’s price. This gives early validation and testimonials.

Week 2: Build Your Core Offer

  • Create a productized service or simple program.
    • Example: “DM-to-Consult Sprint: 30 Leads Yes In 21 Days.”
    • Or: “Onboarding Accelerator: Reduce onboarding time by 30% in 30 Days.”
  • Develop the core delivery setup:
    • Templates + onboarding docs
    • A simple delivery or coaching structure
    • A dashboard or tracking mechanism (even a shared spreadsheet works)
  • Break down the sprint into daily tasks using time blocks—clarity is your friend.

Week 3: Publish & Promote

  • Post every day on your chosen platform. Rotate between:
    • Proof: customer wins, screenshots, results
    • Process: behind-the-scenes, frameworks, checklists
    • Mistakes & Myths: bust false beliefs, share quick wins
    • Point of View: why you do it differently
    • Pitch:at least one clear CTA per week to book or buy
  • Slide into DMs of qualified leads with something useful first—don’t go straight for the ask. Start with research, feedback, or a free audit.

Week 4: Launch & Refine

  • Run a simple sales call sprint:
    • Diagnose ? Prescribe ? Offer ? Overcome objections ? Move on
  • Close the loop with those early customers:
    • Collect testimonials
    • Ask for feedback to refine your offer and delivery
    • Publish outcome-based proof

Why This Works: The Science + Strategy

  1. Cognitive simplicity sells — people click, read, and act faster when you give them one thing. 
  2. Social proof compounds — case studies and testimonials build trust fast.
  3. Feedback loops fuel growth — early buyers tell you what works, so you tweak quickly.
  4. Focused execution scales — when you know exactly what to do, results snowball.

Advanced Growth: When to Add Your Second “One”

Don’t chase more channels, offers, or avatars too early. Here’s your milestone checklist to consider adding a second:

  • Consistent $10k MRR (or equivalent) for 3+ months.
  • 50–100 strong testimonials or case studies with social proof.
  • Over 40% profit margin and healthy cash flows.
  • Steady lead flow or content performance (views, clicks, replies).

Once those align, you’re ready to replicate your success on a second platform or offer side-by-side—but only after this first engine is humming.

Final Thoughts:

The Rule of One isn’t about limiting your ambition. It’s about creating focus that compounds. When you master one audience, one offer, and one platform, you build authority faster, generate results quicker, and create a business foundation that actually scales.

Your next step: Fill out the toolkit, choose your one platform, and commit to the sprint.

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