How to Think So Clearly People Assume You’re A Genius
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Join my Learning Drops newsletter (free): https://go.icanstudy.com/newsletter-thinkclearly3trapstop1 In this video, I reveal three thinking traps that stop intelligent people from solving complex problems and show you how to avoid them so you can think clearly when others get stuck.
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=== About Dr Justin Sung === Dr. Justin Sung is a world-renowned expert in self-regulated learning, a certified teacher, a research author, and a former medical doctor. He has guest lectured on learning skills at Monash University for Master’s and PhD students in Education and Medicine. Over the past decade, he has empowered tens of thousands of learners worldwide to dramatically improve their academic performance, learning efficiency, and motivation.
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Clear thinking is a trainable skill that requires three key mental shifts: respecting working memory limits by separating concerns rather than thinking harder, reframing overwhelm as a triage problem instead of a capacity problem, and calibrating confidence intervals appropriately rather than pursuing false precision.
- Cognitive overload from holding too many factors simultaneously is the actual problem, not insufficient effort
- Overwhelm signals the need for better prioritization using constraint theory, not more capacity
- High-confidence decisions come from widening scope/margins of error, not increasing precision
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When feeling stuck on a difficult problem, the instinct to think harder actually worsens cognitive performance rather than resolving the issue, because the brain is entering cognitive overload.
“But in reality, when you feel stuck, it's usually an indicator that your brain is entering into cognitive overload. So, continuing to think about it harder doesn't actually resolve the issue, it can actually worsen it.”
The solution to cognitive overload is to respect working memory limits by separating concerns into individual components and resolving each one in sequence rather than attempting to hold all factors simultaneously.
“what we have to do is we have to respect the fact that our working memory is limited and limit our thinking to just a couple of factors at a time. And by doing this, it allows your brain to actually focus in and resolve the question marks that it has around how everything connect.”
The theory of constraint states that in a complex problem with many factors, you should identify the single biggest constraint that, if resolved or removed, would make everything else simpler and easier.
“I really like the concept of the theory of constraint. The theory of constraint says that if you have a big problem with lots of different factors involved, making a complex decision, you ask yourself, what is the one biggest constraint that if I resolved or removed, would make everything else simpler and easier?”
Understanding that it's acceptable to acknowledge uncertainty makes clear thinking easier because it removes the pressure to achieve impossible certainty.
“And when you realize it's okay to acknowledge uncertainty, it becomes a lot easier to think clearly.”
Learning to learn (improving the efficiency of learning itself) is a high-leverage long-term constraint; a 20-30% improvement in learning efficiency compounds into substantial time savings and expanded opportunity every week for the rest of life.
“if you're spending hours per week on reading through documentation and keeping up with the industry or, you know, studying part-time for a master's, or whatever you're doing, and that's soaking up hours of your time every single week, then learning to increase your efficiency by, let's say, 20 or 30%, which is very doable for most people, that has a compounding tail of benefit that saves you time and opens up new opportunities every single week for the rest of your life.”
You can 100% confidently claim that 'there are 3 billion English speakers in the world plus or minus 3 billion' because the range covers zero to 6 billion, which includes all realistic possibilities, despite being useless as a prediction.
“If I ask the question, how many English speakers are there in the world right now? I don't know the answer to that, but I can 100% confidently say that the answer is 3 billion plus or minus 3 billion.”
A confidence interval in medical research (e.g., '10 points plus or minus 3 points with 95% confidence') means that if a study is repeated 100 times, approximately 95 of those runs will yield results within the stated range, not that there is 95% certainty about the point estimate.
“we are 95% confident that the true effect of this medication is 10 points plus or minus three. So basically, 7 to 13 points, right? Minus three from 10, plus three from 10. We can't say it's exactly 10 points cuz it won't be for some people, but if you ran the study 100 times, then 95 out of those 100 times, you're going to get some number that's between 7 and 13.”
Confidence is a byproduct of scope—to increase confidence in a conclusion, widen the scope and increase the margin of error rather than attempting to increase precision.
“Confidence is the byproduct of your scope. If you want to increase the confidence of your decision or your conclusion or your analysis, all you do is you make a broader conclusion. You add more margin of error into it.”
Overwhelm is not a capacity problem but a triage problem—the feeling arises not from insufficient mental capacity but from uncertainty about what to prioritize and work on first.
“this feeling of overwhelm is not an issue with my capacity. It's not a capacity problem. It's a triage problem. The reason I'm feeling overwhelmed is I don't know what to do next.”
Dependency mapping is a practical technique for visualizing how factors, concepts, and blockers relate to each other, allowing identification of constraints and problem structure.
“learning how to do what's called a dependency map. A dependency map is a really simple, super useful technique. I use it in my work all the time. You just write down all the different factors, concepts, events, considerations that are making this difficult for you. You just dump it. Everything that you can think of. And then you start connecting together dependency. Which factors or considerations are causing other factors or blockers?”
A critical mistake is ignoring long-term constraints that are not currently urgent; if a constraint takes 6 months to resolve but won't become critical for another 6 months, it is actually urgent now and should receive regular time allocation (e.g., 1 hour weekly) to avoid time-poverty when it becomes critical.
“The biggest mistake you can make is ignoring those because they're not relevant to you right now, and eventually, when they do become your biggest, most urgent constraint, you're now out of time. If this constraint is not going to become urgent for another 6 months, but it takes you 6 months to unblock it, then actually, that's urgent now.”
When making decisions about complex, messy systems, it is impossible to reach 100% confidence with precision of ±1% because too many interacting factors are too complicated to fully account for, making attempts at that level of certainty either produce overconfidence (ignoring relevant factors) or paralysis (endless analysis).
“with complex, messy systems, it's not possible to reach that 100% level of confidence. There are just too many factors that interact in ways that are too complicated to ever arrive at a decision where you can truly say, hand on heart, I'm 100% confident that this is the right choice.”
Real high performers differ from optically high performers: optical performers sound confident by ignoring complexity; real performers acknowledge uncertainty, reframe problems to a scope they can confidently address with available information, and adjust interval width rather than seeking false certainty.
“this is a key difference between real high performance and optical high performance. Optical high performance just want to look like they're high performance. So, they just care about sounding confident. When they have a difficult problem, they just say, oh, you can just do it this way. They solve the problem by ignoring the problem. Whereas real high performers, they reframe the problem instinctively. If they realize they can't resolve it easily, they switch to, what is the level of detail or the scope of the conclusion or the decision that I can confidently make right now with the information that I've got available while staying honest to myself.”
When you are continuously solving problems that feel urgent, never stopping to proactively address non-urgent but high-impact constraints, you end up on a hamster wheel where there is always a new urgent constraint appearing, preventing forward progress.
“when you neglect that constraint, that's when you end up on this sort of hamster wheel where you're constantly working on the things that you think are a top priority, but there's always something new, a new constraint around the corner. That's what happens when you don't proactively unblock yourself.”
In sales funnel design, instead of pursuing impossible precision about conversion rate or risking collapse by assuming best-case performance, set thresholds: 'I'm 99% confident conversion is 2-7%' and design the funnel to be profitable at 2% while able to scale at 7%.
“The paralyzed move is to spend the next 9 months doing 40 different variations of sales funnel testing and cost optimization to figure out exactly what is the conversion percentage going to be like when you launch this to the public. But the confidence interval approach is to ask, well, what is the range of conversion percentage that I'm 95, 99% confident of? Well, I'm 99% confident that the conversion is going to be anywhere between 2 to 7%. And because I'm confident that conversion is going to fall within that range, let's set up the sales funnel so that if it's performing really badly, I can make it cheaper and pull parts away. And if it's performing really well, I can scale it up. Let's not commit to the idea that only breaks even if I hit 10% conversion.”
To know what to prioritize when overwhelmed, you do not need to understand how all factors interconnect; knowing just the highest-priority next action is sufficient and more practical than mapping all dependencies before acting.
“The reason I'm feeling overwhelmed is I don't know what to do next. And the trick is understanding that you don't need to know how all of it connects together to know what you need to do next.”
Thinking on paper is a valuable strategy that makes working through even complex problems trivially easy, and the speaker uses it routinely by keeping a notebook accessible at all times.
“one of the most valuable strategies that you can pair with what I've taught you so far in this video is learning how to think on paper. This makes thinking through even the most complex problems trivially easy. It's strategy I use all the time. In fact, I keep a notebook next to me at all times just for that purpose.”
Intelligent, high-functioning people often resist acknowledging working memory limitations because they are accustomed to 'figuring things out,' and accepting the constraint feels like a pride hit, even though all humans have this same limitation.
“I see this trap especially often with intelligent, high-functioning people because they're used to being able to just figure it out. And for me, at least, I remember feeling almost like a hit to my pride accepting that my working memory can only hold so much. But that's just how the human brain is, and it's kind of a dumb thing to be proud about.”
This accurate confidence approach enables three things: plan accurately (because your scope matches reality), move forward safely (because you're not betting on impossible precision), and continue making progress without getting stuck (because you're not seeking unachievable certainty).
“That allows you to plan accurately, move forward safely, and continue making progress without getting stuck.”
Clear thinking is a trainable skill that puts practitioners in the top 1% of most valuable people others want to work with.
“The ability to think clearly is also an incredibly rare skill that almost universally puts you in the top 1% most valuable people that others want to work with and have on their team.”
The speaker's medical experience on call managing 150 patients with less than 10 seconds of rest per hour, and missing calls while performing procedures, demonstrates extreme cognitive load and the need for effective triage.
“I remember holding the phone after hours when I'm on call and looking after 150 different patients, nurses constantly messaging me for things that they need me to do. And sometimes the on-call is insanely busy. Like across 5 hours, you may have less than 10 seconds of rest. One time I had to put a catheter line in one of the patients, it took me like 5 or 10 minutes longer than it should have. And in that time, I missed like five calls.”
The speaker is a learning and cognitive performance coach with over 14 years of experience, and previously worked as a medical doctor managing high-stress clinical situations.
“as a learning and cognitive performance coach for over 14 years now”