Get AI summaries of any video or article — Sign up free
How to Make Big Decisions thumbnail

How to Make Big Decisions

Ali Alqaraghuli, PhD·
5 min read

Based on Ali Alqaraghuli, PhD's video on YouTube. If you like this content, support the original creators by watching, liking and subscribing to their content.

TL;DR

Classify decisions by reversibility; irreversible or hard-to-undo choices require the full algorithm, while reversible ones can be tested with less friction.

Briefing

Big decisions don’t have to be mystical—they can be handled with a repeatable process that blends structured thinking with a final gut-level judgment. The core claim is that the best outcomes come when people (1) treat irreversible, hard-to-reverse choices with extra rigor and (2) use a five-step information-and-logic cycle before letting intuition make the final call. That matters because most people either overthink reversible choices or outsource judgment on high-stakes ones, then regret the result when it goes wrong.

The framework starts by sorting the decision itself. Drawing on Jeff Bezos’s distinction, reversible choices (like what to wear) can be tried with minimal downside, while irreversible or difficult-to-undo decisions—tattoos, college paths, PhD decisions, starting a business, and even marriage—require deeper attention. The algorithm is designed for the latter category: commitments that can lock in years of life and are costly to reverse.

Step one is clarity: define exactly what decision is on the table. Ali Alqaraghuli gives examples from career crossroads—choosing a major, deciding on a PhD, or choosing between a corporate path and graduate study—and points to Elon Musk’s early fork between continuing a Stanford PhD and joining the internet boom. Step two is inward hypothesis-building: assume there’s no outside input and reason from personal knowledge and logic. In Alqaraghuli’s case, the fear of boredom and the risk/reward tradeoff pushed him toward a PhD despite financial uncertainty; Musk’s own knowledge suggested the internet opportunity was the better bet.

Step three is targeted consultation: seek out experts who have achieved the outcomes you want, not random people whose backgrounds don’t match the problem. Alqaraghuli describes interviewing 31 NASA engineers during a JPL internship, repeatedly asking why they chose their paths and what they would do in his situation. Musk is cited as similarly relentless about asking mentors and professors, including discussions around deferring Stanford admission.

Step four is critical analysis of what experts say. Advice should not be accepted at face value; it must be tested against logic, first principles, and personal reasoning. Alqaraghuli criticizes the habit of outsourcing thinking to coaches or gurus, arguing that even authoritative guidance can be wrong for a specific person.

Step five compares the analyzed external input back to the original hypothesis. People should synthesize and “average” the guidance, then ask whether it confirms, challenges, or changes the initial assumption—often using reflective downtime like walks or late-night drives.

The “plot twist” is the final decision rule: intuition. The process ends with a gut feeling, but not a raw impulse. Intuition is portrayed as calibrated by prior reasoning, desire, and emotional priorities. Alqaraghuli argues that the mind and heart work together: do the intellectual work first, then follow the calm, right-feeling signal. He adds practical calibration tips—sleep, diet, and avoiding exhaustion—because poor rest can turn intuition into impulsivity. The payoff is fewer regrets: even when a choice is wrong, it remains the person’s own decision rather than a mistake made by deferring to someone else’s judgment.

Cornell Notes

The decision-making method centers on hard-to-reverse choices and ends with a gut-level call that’s grounded in prior reasoning. First, classify the decision as reversible or irreversible; the algorithm targets the irreversible category where mistakes are costly. Then define the decision precisely, build an initial hypothesis using personal logic, and consult experts who have achieved the outcomes you want. Analyze expert advice critically and compare it back to your original hypothesis. Finally, act on intuition—described as a calm, calibrated feeling shaped by deep thinking and personal desire, not impulsivity—while sleep and diet help keep that intuition reliable.

Why does the framework start by classifying decisions as reversible vs. irreversible?

It treats irreversible (or very hard-to-undo) choices as a different risk class. Reversible decisions—like what to wear—can be tried and changed quickly. Irreversible decisions—tattoos, college and PhD choices, starting a business, and marriage—can consume years and are difficult to reverse, so they demand more structured thinking, expert input, and careful comparison before acting.

What does “define the decision” mean in practice?

It means getting crystal clear on the exact fork in the road. Instead of vaguely “choosing a career,” the decision is framed as a specific comparison (e.g., continue a PhD vs. join the internet boom). The method warns that many people skip this step and don’t even know what they’re deciding, which makes later reasoning and consultation less useful.

How should someone form the initial hypothesis before asking others?

Assume no external inputs and reason from personal knowledge and logic. The hypothesis is built from what the person knows, what they observe, and what they believe is likely to work. In the transcript, Alqaraghuli uses his own reasoning about boredom and risk to justify choosing a PhD; Musk’s early knowledge about the internet boom supports the idea of joining that revolution rather than continuing the PhD path.

What’s the rule for who to ask, and what’s the danger it avoids?

Ask experts who have the results you want. The transcript gives a cautionary mismatch example: don’t ask someone who’s poor how to get rich or someone unhealthy how to solve health problems. Alqaraghuli’s approach includes interviewing 31 NASA engineers during a JPL internship and asking them why they chose their paths, then asking what he should do in his shoes.

Why isn’t expert advice treated as final?

Because advice must be analyzed, not accepted at face value. Even accomplished people can be wrong for a specific situation. The method emphasizes critical thinking and first-principles testing—especially warning against outsourcing thinking to coaches or gurus in online courses, where people may stop doing their own reasoning.

How does intuition fit after all the analysis?

Intuition is the final call, but it’s portrayed as calibrated by the earlier steps. After comparing expert input to the original hypothesis, the person listens for a calm, “feels right” signal aligned with deep desire. The transcript also distinguishes intuition from impulse: poor sleep and exhaustion can degrade intuition and make it feel like certainty when it’s actually impulsiveness.

Review Questions

  1. Which steps in the algorithm are meant to reduce the risk of irreversible mistakes, and how does each one do that?
  2. How would you decide whether to treat a choice as reversible or irreversible before applying the framework?
  3. What would it look like to “analyze advice” using first principles rather than accepting it from an expert?

Key Points

  1. 1

    Classify decisions by reversibility; irreversible or hard-to-undo choices require the full algorithm, while reversible ones can be tested with less friction.

  2. 2

    Define the decision with precision so the comparison is explicit (e.g., option A vs. option B), not a vague life direction.

  3. 3

    Build an initial hypothesis using only personal knowledge and logic before seeking outside input.

  4. 4

    Consult experts who have achieved the outcomes you want, and ask them what they would do in your specific situation.

  5. 5

    Treat expert advice as raw input: analyze it critically and test the reasoning rather than accepting it at face value.

  6. 6

    Synthesize and compare external guidance back to the original hypothesis to see whether it confirms, challenges, or changes the plan.

  7. 7

    Make the final call using calibrated intuition, and protect it with basics like adequate sleep and a clean diet to avoid confusing intuition with impulse.

Highlights

The process is built for irreversible decisions—choices that can lock in years—where structured thinking and careful comparison matter most.
Expert consultation is paired with skepticism: advice must be analyzed and tested, not treated as final truth.
Intuition is the last step, but it’s described as the product of prior reasoning and personal desire, not a substitute for thinking.
Sleep and diet are presented as practical tools for keeping intuition reliable rather than impulsive.

Topics