Anything But Absolute Yes Is a No — Essentialism in Practice
Too Many Tasks, Nothing Finished
Ever had a task list so long that you can’t even remember what the top three items were yesterday?
As an engineer, requests, notifications, and learning goals never stop arriving. Believing “if I just do everything, I’ll grow,” I kept piling them on. The result: every project went half-baked, and the things I actually wanted to do were the first to be quietly neglected.
One book I keep coming back to as a reset is Essentialism — in one sentence, the discipline of identifying the truly important task that only you should do.
The earlier post pairing Essentialism with Effortless thinking covered the what × how dual wheel. This time I’m drilling into the practical side: the courage to say no, and living in the now.
The Pickle Jar — Put the Rocks in First, or Sand Wins
A useful mental image from the book is the pickle jar.
| Order | Item | Meaning in Life |
|---|---|---|
| 1 | Rocks | What truly matters (dreams, health, family) |
| 2 | Pebbles | Important but not urgent (learning, exercise) |
| 3 | Sand | Trivia (notifications, drift, busywork) |
If you don’t put the rocks in first, the jar fills with sand. Once it’s full of sand, the rocks no longer fit.
Most modern jars are getting filled, in this order, with social-media pings, drifting overtime, and “I might as well watch this” videos. The jar’s full of sand before any rock had the chance to climb in.
Anything But “Absolute Yes” Is a No
The book’s filter for what counts as a top-priority task is brutally simple.
If it isn’t an absolute yes, it’s a no.
“I guess I could,” “it would be awkward to refuse,” “it looks interesting” — those are all no. The moment you spend time on “would be nice” tasks, sand starts pouring into your jar.
This filter applies just as strictly to requests from other people as to your own decisions. And that’s exactly why the most important skill in essentialism isn’t a technical one. It’s the skill of —
The Courage and Skill to Say No
Saying no is the non-negotiable skill of essentialism.
The book stresses that this isn’t a personality trait — it’s a trainable skill.
- Don’t reply on the spot. Buy a beat with “let me think about it.”
- Don’t justify the no with reasons. Tell them what you’re prioritizing instead.
- You aren’t refusing the person, you’re refusing the physical reality of “this volume, in this period, won’t work.”
People who can say no aren’t cold. They simply have the technique to protect their rocks. People with vague yes-or-no boundaries end up keeping more people waiting and quietly losing trust.
Cutting Sleep Is Anti-Essentialism
Once you’ve chosen your rocks, the next move is to maximize performance against them. The book argues, again and again, that the foundation is sleep.
Most people treat sleep as an obligation to trim for “more time.” That’s a complete inversion. The often-quoted 10,000-hour rule has become a number cited out of context — “just put in time and you’ll be world-class.” The original framing assumed high-quality sleep as a precondition. Without it, even ten thousand hours yields a flat curve and the worst outcome: “I practiced and didn’t improve.”
Sleep isn’t a thief of time. It’s the investment that decides the quality of your waking hours. For an essentialist, cutting sleep is roughly equivalent to smashing your own rocks into sand.
The Courage to Stop — Beating Sunk-Cost Bias
The hardest move in essentialism is stopping what you’re already doing. Non-essentialists get pulled around by two biases:
| Bias | What It Does |
|---|---|
| Sunk-cost bias | ”I’ve poured time and effort in — I have to keep going.” |
| Endowment effect | ”I don’t want to let go of what I already have.” |
Both are rooted in fear of loss. The book offers one cutting test:
“If I had not already started this, would I start it today?”
If the answer is no, that’s not a reason to continue — it’s a reason to stop. Sunk costs were paid in the past, and the past has no vote in your next decision. For engineers, this is the same courage as facing legacy code: features kept around because “past-me wrote it” are sand in the jar.
What Essentialism Really Gives You: Living in the Now
Say no with conviction, prioritize sleep, find courage to stop, and put rocks into the jar first. Once you run this loop, an unexpected side effect appears:
You become able to focus on the now. You start living in the now.
Time spent on a chosen rock has no room for past regret or vague future anxiety. The state of being able to say “what I’m doing right now is an absolute yes” — that’s what it means to live in the now.
The opposite is staring at a sand-filled jar and saying, “someday I’ll get serious.” As long as you do that, you’re mortgaging today against a future self that never quite arrives.
Closing Thoughts
I read essentialism not as a productivity recipe, but as an operating rule for life: life is a jar; rocks go in first.
- Identify what’s truly important (the pickle jar).
- Treat anything that isn’t an absolute yes as a no.
- Train the courage and skill to say no.
- Make sleep the top priority — it sets your quality.
- Find the courage to stop what you’ve started.
- The result: a life focused on, and lived in, the now.
I haven’t removed all the sand from my own jar. But every re-read turns a little more sand back into rock. A book I expect to keep returning to.
If your jar feels jammed with sand right now, you might try the one question tonight: “If I hadn’t already started this, would I start it today?” The answer is often more honest than we’d like.
Related Articles
- Essentialism and Effortless Thinking — The Two Wheels of “What” and “How” — Choosing what, and making it lighter
- Don’t Bring Motivation to Work — Like Brushing Your Teeth, Let Systems Deliver Results — Systems instead of willpower