0. Five-second takeaway
Thinking deeply is not the problem. It is often an advantage.
The problem begins when you keep calculating variables that cannot be observed from inside your own head. At that point, thinking stops being research and starts becoming a private ritual.
- Use internal reflection for your values, logic, priorities, and long-term direction.
- Use external feedback for other people's intentions, market reactions, real-world fit, and outcomes.
- When your internal model stops generating new information, ask the person, search, use AI to organize the evidence, or run a small experiment.
- Bring the result back inside and update the model.
- Use recovered time for lunch, walking, play, rest, or literally doing nothing useful.
Dig inward → form a hypothesis → call the reality API → collect feedback → update the model → gain more time to pray.
Your smartphone is not merely a glowing rectangle. It is a portable advisory board.
1. “Introvert or extravert?” is usually too crude a question
In psychology, introversion and extraversion are broad personality traits. The APA Dictionary of Psychology describes introversion as an orientation toward one’s internal thoughts and feelings, and extraversion as an orientation of interests and energy toward the external world of people and things.
That does not mean deep thinking = introversion or asking people questions = extraversion.
For this article, dig inward means decomposing assumptions, checking internal consistency, and building hypotheses. Seek external feedback means interacting with reality to obtain new data.
These are tools, not diagnoses or personality labels. Owning a knife does not make you a chef. Opening Google does not make you an extravert.
2. Keep the ability to think deeply
Internal reflection is useful for questions such as: Is the assumption itself correct? Are A and B really the same problem? What happens long term? What am I actually trying to protect? What pattern exists underneath the individual events?
Search cannot decide your values for you. If the first search result ever says “Here is how you truly want to live,” close the tab. You have found a final boss, not a search engine.
Deep thinking works like a compiler that converts generic information into a model of your problem. The failure mode appears when compilation is already complete and you keep recompiling the same code forever.
3. Productive simulation and rumination are not the same thing
Repetitive negative thinking, including rumination and worry, is studied as a pattern of repetitive, intrusive, difficult-to-disengage thought. Reviews report that rumination can prolong negative mood, interfere with problem solving and goal-directed behavior, and reduce sensitivity to changing circumstances.
But repetition itself is not automatically bad. Research has long distinguished more solution-oriented reflection from passive brooding.
Productive simulation
- generates new hypotheses
- organizes options
- identifies the next missing fact
- has a stopping rule
- ends in a decision or action
Ruminative simulation
- replays the same material
- cycles through “maybe this / maybe that”
- adds no new information
- increases distress without improving the model
- has no stopping rule
The useful metric is information gain. If information gain is zero but CPU usage is 100%, that is not elite performance. That is just a loud cooling fan.
4. If a variable is not observable in your head, ask the department that owns it
The clearest example is another person’s mind. You can internally simulate forever, but the other person’s mind is not installed in your local environment.
At some point, ask them: “What did you mean?” “Would you rather not do this?” “Which option do you prefer?” “Are you tired?” “Do you want to go again?”
People do not always understand or verbalize their own feelings perfectly, so an answer is data, not divine revelation. Still, one answer from the actual person is often better evidence than one hundred simulated copies of them living in your head.
If the customer is available, do not hold a six-hour meeting about what the customer might want. Go ask.
5. “This is the only career I have” can collapse when reality is queried
Consider credentialed professions such as nursing. The higher the cost of earning a qualification, the easier it is to think: “I worked too hard for this to leave,” “If I quit, my career is over,” or “This is all I can do.”
But these claims do not have to be settled by imagination. Look at jobs in other industries. Apply. Take an interview. Ask about the work. Check pay and conditions. Decline if it is wrong.
Applying is not the same as changing careers. An application can also be an information-gathering instrument.
Explore-exploit research distinguishes directed exploration: choosing uncertain options partly because they can reduce uncertainty and teach you something.
“Quit forever or stay forever” is a huge binary decision. “Look at one role in another industry and see what happens” is small.
Reality may answer: you are competitive, the pay drop is smaller than expected, the field is a bad fit, the company is a hard no, or the work is surprisingly interesting. Every answer contains information.
A conclusion unanimously approved by the committee in your head can be returned by reality with: “Rejected. Incorrect assumptions in the proposal.”
6. Better thinking often means better stopping rules
Thinking better is not only thinking faster, deeper, or through more scenarios. It also means knowing when to stop internal analysis and switch to external exploration.
Use internal reflection for values, long-term priorities, hard-to-reverse decisions, integrating complex facts, and judgments that cannot be outsourced.
Switch to external feedback when you do not know what another person thinks, how a market will respond, whether something fits you in practice, when the answer exists in an official source, when the same hypothesis has repeated without new information, or when a cheap reversible test exists.
In decision language: cost of more thinking > expected information gained from more thinking. In human language: “Nothing new is coming out of my head now.”
That rings the closing bell for the internal meeting.
7. Your smartphone is a portable advisory board
| Unknown | Best first destination |
|---|---|
| What do I value? | Internal reflection |
| What does this person mean? | Ask the person |
| Law, price, opening time? | Official source / search |
| General trend? | Research / statistics |
| Too much information to organize? | AI |
| Does this actually fit me? | Small real-world test |
| Is the AI answer correct? | Verify with primary sources |
Keeping a smartphone in your pocket while internally guessing the law, the labor market, another person’s preferences, and product specifications is equivalent to making one skull perform finance, legal, HR, market research, customer interviews, and IT support.
No wonder overtime happens.
External feedback also contains error: people misremember, search results become stale, reviews are biased, and AI can hallucinate. The goal is not outsourcing judgment. It is acquiring external data.
Consult advisers. Do not hand them the CEO chair.
8. When rumination falls, you recover cognitive bandwidth as well as clock time
Rumination can keep background tabs open: yesterday’s conversation, tomorrow’s job, another person’s reaction, a mistake, or a future failure that has not happened.
Research on RNT links these repetitive loops with impaired problem solving and goal-directed action; related work also suggests rumination can reduce engagement in enjoyable activities.
So when rumination decreases, you regain slots in attention and life, not merely minutes.
Then other prompts can enter: Where should I go today? Want a good lunch? Walk somewhere? Try that strange little restaurant? That exhibit looks interesting.
You do not have to fill the freed CPU with more work. Optimization can also mean having more time to experience reality.
9. Why “more time to pray” is such a good meme
In HUNTER×HUNTER, Netero performs an extreme routine of grateful straight punches. As the routine becomes absurdly fast, the extra capacity becomes more time for prayer rather than simply a larger quota.
In June 2026, the official Shonen Jump YouTube channel published a “10,000 gratitude punches” video built around the same motif.
A standard process-improvement department sees 18 hours → 1 hour and says: “Excellent. Increase the punch KPI eighteenfold.” Humanity sees an empty spreadsheet cell and wants to populate it.
Netero’s logic is different. Capacity appears. Pray.
Transplant that into ordinary life: 18 hours of rumination → ask the person → search → use AI → small test → one hour of useful thinking → more time for lunch.
Eventually the finger opening Google Maps leaves sound behind.
10. The practical protocol: Dig → Query → Update → Lunch
- State the problem in one sentence.
- Ask whether the variable can be observed inside your head.
- Make the cheapest reality API call: one question, an official source, one job application, several reviews, an AI comparison, or a small test.
- Treat feedback as data about the hypothesis, not a verdict on your worth. “Under these conditions, this outcome occurred.” Do not perform a full personality Bayesian update from n=1.
- Bring the data back inside, interpret it, update the model, and when the loop is closed: eat lunch.
11. This is not a project to “cure introversion”
Introversion is not an illness, and extraversion is not an upgrade pack. APA treats them as broad traits on a continuum.
The target is not introversion. The target is repetition that stops producing information.
And the thing to increase is not reckless activity. It is well-timed exploration for missing data.
Build deeply what only you can build internally, and query reality for variables only reality can answer.
12. Conclusion: You do not need to simulate the entire world
Old operating system: estimate the other person, the market, the future, your response, their response to your response, gain zero evidence, continue meeting.
New operating system: think deeply where it has value, detect externally observable variables, query people/search/research/AI/small experiments, update from real feedback, close the tab, go outside, eat something excellent.
Nothing about this requires giving up intelligence. You are simply reclaiming intelligence from an infinite rumination loop.
The brain is not a perfect simulator of the world. You are allowed to ask the world.
And when the process becomes faster, you do not have to fill the empty space with more work.
You can, instead, gain more time to pray—or, more practically, gain more time for a very good lunch.
Civilization may be for that too.
