
Brain Hacks: Learn Smarter, Not Harder
Podcast by Wired In with Josh and Drew
How to Excel at Math and Science (Even if You Flunked Algebra)
Introduction
Part 1
Josh: Drew, you know that feeling when math or science just seems…impossible? Like some people are just born with the “math gene” and the rest of us are doomed to fail? Drew: Oh, tell me about it. I've always felt like an outsider looking in. Is there really some magic formula to unlock it for the rest of us? Josh: Exactly! And what if how you learn is more important than raw talent? Think of your brain as a toolbox. With the right tools and techniques, even the most daunting problems become manageable. Drew: Okay, I'm intrigued. But are these “tools” actually useful? Because I don't have time for complicated, abstract theories. And do I need a neuroscience degree to work this stuff out? Josh: Absolutely not! That's the beauty of Barbara Oakley's A Mind for Numbers. She takes the science of learning and makes it super practical and accessible. The book explores the focused and diffuse thinking modes, memory techniques like chunking, and even hacks to conquer procrastination. Drew: So, it's not just about endless hours of rote memorization. There's actually a smarter way to approach this? Josh: Precisely! Oakley argues it's about working smarter, not just harder. Drew: Okay, Josh, lay it on me. What's our game plan? Where are we focusing our attention today – pun intended? Josh: <Laughs> Glad you asked. First, we will explore the focused mode, like a flashlight beam for detail, and the diffuse mode, like a lantern for the big picture. Then, we'll tackle procrastination, which is more than just a “bad habit” but a brain loop, and we'll discuss the Pomodoro Technique to get out. Drew: Got it. And you mentioned memory tricks? What's the deal with those? Josh: Right. Memory techniques, such as chunking and visualization, help us organize and simplify complicated information. Think of it as turning complex ideas into easy-to-manage mental Lego bricks. Drew: Alright, tools, tricks, and analogies—I’m ready to deconstruct this mountain of math and science into something we can actually climb. Where do we begin?
Modes of Thinking
Part 2
Josh: Alright, let’s jump right in and talk about focused and diffuse thinking. You know, they're like the brain's power couple. When you use them strategically, you can really boost your learning and your overall thinking process. Drew: Focused and diffuse, huh? Sounds like a buddy cop movie, maybe an odd couple pairing. Which one's the by-the-book type, and which one’s, shall we say, a bit more… unconventional? Josh: <Laughs> that’s a fun way to look at it! Focused thinking is definitely the serious one, the meticulous type. Think of it as a laser beam – super concentrated, pointed right at a particular problem or concept. It’s all about being precise and getting into the details. Like, if a scientist is analyzing data from an experiment, they're zoned in, taking things apart piece by piece. Drew: So, when I'm four espressos deep, eyes glued to a spreadsheet for hours, I'm operating in focused mode? Josh: Pretty much! The thing about focused mode, though, is it has its limits. It's fantastic when you're dealing with clear, well-defined problems. But if you hit a wall, if you're stuck on an equation or a real head-scratcher of a puzzle, it can actually backfire. Your brain gets locked in, and you lose the ability to see things in a new light. Drew: Ah, the dreaded "can't see the forest for the trees" scenario. I know it well. So, where does diffuse thinking fit into all this? Josh: That’s where things get interesting. Diffuse thinking is more like the intuitive, creative sidekick. Instead of zeroing in, it’s like a wide-angle lens, letting your mind roam and make connections you wouldn't expect. You're not consciously analyzing; you're giving your brain some breathing room to explore and often stumble upon those "aha!" moments. Drew: So, diffuse thinking definitely “isn't” happening when I'm buried in a textbook. This is more like when I'm spacing out in the shower or going for a walk, right? Josh: Exactly! Those moments of rest or doing something mindless – they create the perfect space for diffuse thinking. Take Thomas Edison, for example. You know how he'd sit with a ball bearing in his hand? Drew: Right, wasn't that part of his… interesting napping strategy? He’d doze off, drop the ball, wake up, and – boom! – inspiration strikes. Josh: Precisely! Edison understood that switching back and forth from focused work to moments of rest could lead to some pretty big breakthroughs. By letting go, he allowed his diffuse mode to work its magic, and ideas just seemed to pop up! Drew: Okay, so Edison was basically napping his way to inventions. But does diffuse thinking actually work for everyone? I mean, we're not “all” trying to invent lightbulbs or win at chess here. Josh: Absolutely, it does work for everyone! Because it's really baked into how our brains make connections. Think about Magnus Carlsen, the chess grandmaster. During a crucial match against Kasparov, he stepped away from the board for a bit. That little reset allowed him to mentally regroup. It threw Kasparov off too, but more importantly, it gave Carlsen's diffuse mode the chance to reevaluate his strategy. Drew: Hold on – so his secret weapon was literally “walking away” from the problem? That's wild. Josh: Exactly! It’s the interplay between the two modes that really matters. You use focused thinking to analyze, then diffuse mode comes in to give you a fresh perspective. And that back-and-forth is crucial for tackling really complex problems. Drew: This is all very enlightening in theory, but let’s get practical here. Let’s say someone's wrestling with, I don't know, a calculus problem. What does this focused-diffuse dance look like in the real world? Josh: That’s a great question. Okay, so if you're stuck, forcing even “more” focus isn't going to help – it’ll probably make things worse. Instead, take a break and let your diffuse mode take over. That could mean going for a walk, doing the dishes, or even just daydreaming. While you’re doing something else, your brain is still working on the problem in the background, making new connections. Drew: So, it's like outsourcing the problem to your subconscious while you grab a coffee. Sounds good in theory. But is that risky? What if you just never get back to the problem? Josh: That’s where strategies like the Pomodoro Technique can really help. It’s a system where you alternate between focus and breaks to make sure you actually come back to the task. You work for 25 minutes, then take a five-minute break. It’s a way of building in that switch between focused and diffuse modes without disappearing for hours. Drew: Okay, I see the appeal. I mean, who doesn’t love a scheduled break? But what about those times when your brain is just… stuck? Like when you’re fixated on a solution that isn’t working, and you just can't shake it? Josh: Right, that's what we call the "fixation effect," or Einstellung. It's when your brain gets stuck in a rut, trying the same thing over and over even though it's not working. Recognizing when you're in that state is key because then you can consciously switch gears. Albert Einstein famously solved some of his biggest problems not by sitting at his desk, but by taking long walks where he could reflect. Drew: So, Einstein’s genius wasn’t just his brainpower – it was “where” he let his mind wander. Josh: Precisely. The main takeaway here is that learning and problem-solving are not all about brute force. It's about finding balance – knowing when to really focus and when to let your diffuse mode do its thing. Drew: So, effectively, our brains are both spotlights “and” floodlights. And the real skill lies in knowing when to switch between the two to illuminate the path ahead effectively. Josh: Exactly! And when you master that interplay, you’re not just learning smarter, but proactively creating the necessary headspace to think bigger and solve problems more creatively overall.
Overcoming Procrastination
Part 3
Josh: So, after understanding these cognitive modes as the basis for effective learning strategies, let’s dive into something we all struggle with: procrastination. It’s amazing and frustrating how our brain can trick us into avoiding work. Drew: Ah, procrastination, my old, complicated friend. But is it really just laziness with a fancier name, or is there something more to it? Josh: Oh, it's definitely more than laziness. Procrastination is actually like a complex habit loop. It consists of four key parts: cue, routine, reward, and belief. It’s more of an avoidance, driven by emotional discomfort, not just being lazy. Drew: A habit loop? Sounds a bit too scientific for me. Could you break that down further? Josh: Sure thing! Okay, imagine you're a student staring at a textbook. That’s the cue. Seeing that textbook reminds you of all the challenging material inside, which can trigger anxiety or self-doubt. That uncomfortable feeling leads you to avoid studying—maybe you start scrolling through social media or start organizing your desk...That's the routine. Now, the temporary relief you get from avoiding the stress…that becomes the reward, reinforcing the idea, or belief, that procrastination helps you feel better. The catch is, it's just a quick fix that leads to more stress in the long run. Drew: So, basically, our brain is telling us, "Hey, there's a problem—let's go alphabetize the bookshelf instead!" And we fall for it every single time. Josh: Exactly. What's so interesting is that this emotional discomfort—that fear of failure, self-doubt, or just feeling overwhelmed—it lights up the pain centers in our brains. Some neuroscience studies have even shown that this applies to math anxiety. Drew: Wait, pain? You mean it feels like actual pain? Are you telling me that cracking open a calculus textbook feels the same as stubbing my toe? Josh: Well, kind of! The brain interprets the emotional discomfort from tackling tough tasks as a form of distress, right? But, the ironic part is, once we actually commit and engage with the task, that discomfort often drops significantly. That's why experts like Rita Emmett say, "The dread of doing a task takes up more time and energy than the task itself." Drew: Okay, so we procrastinate to avoid this discomfort, but diving in headfirst is the actual solution. That's annoyingly circular. So how do we actually break that procrastination loop? Josh: There are several ways to tackle procrastination at its core, but let's start with a popular one: the Pomodoro Technique. It’s a very effective technique for breaking down work into smaller, more manageable blocks of focused time. Drew: Oh, yeah, I’ve heard of that. The “25 minutes of work, then a short break” thing, right? But what makes it so effective, really? Josh: Well, first off, it makes starting so much less intimidating. Instead of thinking, "I have to study for three hours," you just think, "Okay, I’ll focus for 25 minutes." It feels way less daunting. Also, the timer creates a sense of urgency, like a fun challenge. You know you'll get a break soon, which makes the task feel more achievable. Drew: Clever – you turn work into a "beat the clock" game. It’s like a little achievement unlocked every time that timer goes off. Josh: Precisely. And when you repeat these bursts of focused work, your brain starts associating productivity with reward, not with avoidance and anxiety. You are essentially replacing the old habit loop with a new, healthier one. Drew: So, what happens when the task itself feels just... massive? Like "write a huge research paper" or "study for all my exams." Does the Pomodoro thing still help when you feel like you're just drowning in the sheer scale of the thing? Josh: That is where you reframe larger projects into smaller, actionable steps. Think of it like turning a mountain into a series of climbable hills. Try breaking it down. Instead of saying, "Write a research paper," you can set smaller goals, like "create a thesis statement" or "outline the main three arguments." Smaller pieces are much less intimidating than the whole thing. Drew: So, it's kind of like leveling up in a video game: complete a small side quest, grab your achievement, and then go on to the next one. Josh: Exactly! Every small step you complete will give you momentum and a sense of progress, which can really help fight procrastination. And as you tick off these smaller tasks, you start changing your perspective, from "I can’t do this" to "Hey, look at everything I’ve already done." Drew: Well, speaking of progress, let's talk about something I hate: planning tools. Everyone says planners and journals help, but every time I try one, I just... stop using it. Josh: You're definitely not the only one. But, planner-journals offer a bit more than just a place for your to-do list. They mix accountability with reflection. By logging your tasks and thinking about your progress, you’re making a visual record of your accomplishments, which releases dopamine in your brain. So that moment when you cross something off your list? It's not just satisfying; it’s actually neurologically rewarding. Drew: Great, so when I cross out "finish this week's assignment," my brain is throwing a little party for me? Josh: Exactly! And that reward boosts your motivation to keep going. Plus, when you take a moment to write down and reflect on your day or week in a planner, you’re training yourself to focus more on your successes instead of feeling guilt over procrastination. It's as much about how you see yourself as it is about being productive. Drew: Okay, I'm listening. But let's zoom out a bit—how do you tackle the mindset piece? How do you learn to see tasks as less stressful in the first place? Josh: That’s an essential piece. Shifting your mindset means seeing discomfort as a chance to grow. Instead of seeing tasks as unwanted extra weight, recognize that stress and hard work mean you’re doing something meaningful. Also challenge how you view those emotions, like the anxiety you feel before starting. Seeing it as excitement instead of fear actually changes how you approach things. Drew: So, stress isn't the villain, but the over-eager sidekick that you just need to manage better! Josh: Exactly. You don’t want to erase stress, you want to use it to your advantage. So when you realize that that discomfort is only temporary and connected to making progress, you’ll stop avoiding it and start embracing it. That change can make procrastination turn into purposeful action. Drew: Alright, here’s my final thought: procrastination isn’t some flaw you need to beat yourself up about; it’s a pattern you can break with the right mindset and methods. Swap out avoidance with better strategies like Pomodoro or task reframing, track your progress in a planner, and rethink how you approach these challenges. Josh: Correct! Procrastination can feel like your worst enemy, but with a little awareness and some practice, you can turn it into a stepping-stone to productivity—even when it comes to those difficult math problems.
Memory Techniques
Part 4
Josh: So, we've tackled cognitive modes. Now, the next challenge is beating procrastination so we can actually use those modes. But even then, there's another layer: memory techniques. They're not just about memorizing; they're about deeper understanding and making things stick. Drew: Memory techniques, huh? Sounds promising! Are we talking about neuroscientists whipping out magic wands, guaranteeing I'll ace every exam? Josh: Not quite magic, but neuroscience is key. Oakley's techniques—chunking, spaced repetition, visualization, narratives, even handwriting—are based on how our brains naturally function. Drew: Okay, let's dive in! Starting with chunking – for some reason, I immediately picture someone slicing a loaf of bread. Josh: That's actually a great image. Chunking is about breaking down big, overwhelming information into smaller, more manageable pieces, just like slicing bread. For example, try memorizing this number: "4723871956." Impossible, right? Drew: Utterly! Josh: But if you break it down to "472-387-1956," much easier, yes? And chunking works for all kinds of info: vocabulary, complex science or math concepts. Drew: So, instead of staring at one giant, scary sheet of equations, you organize them into smaller groups. This makes the groups easier to remember because it creates some sort of structure? Josh: Exactly! Chunking leverages how our working memory functions. We can only hold a limited amount of information at once. By organizing related pieces into chunks, you reduce cognitive load, freeing up brainpower to focus on connections and meaning. Drew: I like this – it's orderly, like organizing a messy closet by color. Does chunking work with spaced repetition then? Josh: Absolutely. Spaced repetition uses the chunks you’ve created and integrates them into long-term memory by reintroducing them at intervals. So, you review the material bit by bit, over time, instead of cramming. Drew: This sounds suspiciously like the "forgetting curve," you know, where your brain just dumps info the second you stop paying attention. Josh: Bingo! Hermann Ebbinghaus, a 19th-century psychologist, showed how quickly we forget things after learning them. Spaced repetition fights that. By revisiting information at increasing intervals, you practice pulling that info out of storage. Drew: So, by retrieving information, the brain strengthens its hold on it? Like working out a muscle at the gym? Josh: Exactly! Think of it as neurological weightlifting. Say you are learning French vocab, instead of studying the same 20 words five times in one day, you study them on Day 1, then revisit them on Day 2, then wait four days, then six, and so on. When you recall words after longer gaps, your brain sees that information as valuable and prioritizes storing it long-term. Drew: Got it. Spaced repetition works for vocab or formulas. But what about more abstract stuff? All those circuits blended into one big mess in physics class. Josh: That is where visualization comes in. Our brain's visual memory is incredibly powerful, often stronger than verbal. By turning a concept into an image or metaphor, you give your brain something to "grab" onto. For electrical circuits, imagine the flow of electricity as water running through pipes. The current is water flow, and voltage is water pressure. Drew: That metaphor is clearer than what the textbook said about "potential difference." Teachers love diagrams, I guess that's why. Josh: Precisely! Diagrams and illustrations turn dry data into tangible insights. A great example visualization is chemist August Kekulé, who dreamt of a snake eating its own tail, and discovered the benzene ring, which was a huge step forward in molecular chemistry. Drew: Wait, he dreamt the answer? My subconscious needs to step up its game! How can someone ensure a "Eureka!" moment through visualization? Josh: Well, it’s less about controlling your dreams and more about immersing yourself in the problem, so that diffuse thinking can work its magic. Visualization also extends to rewriting memories into stories. The brain loves stories! They give facts context, making them stick better. Drew: Stories, huh? Like, stringing dull elements from the periodic table into some crazy fantasy adventure? Josh: Exactly! Take bromine, for instance – imagine it as a bubbling potion. Or gold as a king wearing a golden crown. Mnemonics and storytelling weave abstract details into memorable scenes. Drew: So, we've gone from rigid flashcards to a theatrical production where the actors are all chemical elements? But let's go back to something more hands-on, like writing. Is there a point in using a pen in this digital age? Josh: Absolutely. Writing is active engagement. Unlike typing, handwriting forces you to synthesize and reorganize ideas instead of just passively writing them down. This deeper processing builds stronger neural connections. Plus, the tactile nature of handwriting taps into muscle memory, reinforcing recall. Drew: So, if I doodle my calculus problems or write out Shakespeare quotes by hand, I'm strengthening retention? Josh: Pretty much. It’s a multi-sensory exercise: physical movements engage your motor cortex, while reorganizing ideas triggers your prefrontal cortex. For visual learners, this approach is especially effective. Taking time to scribble out diagrams, rewrite notes, or even create artistic summaries isn’t a waste of time—it’s part of the learning process. Drew: From doodles to mythological mnemonics, to pen-on-paper satisfaction — this feels less like studying and more like a chaotic but purposeful dance for my brain. Josh: That's a great way to put it! Memory techniques aren't just about studying, they are creative, engaging ways to make learning active and enjoyable. And the beauty of it? They don’t just help you remember – they deepen your understanding, turning knowledge into something meaningful and lasting.
Conclusion
Part 5
Josh: Okay, let's bring this home. Today, we dove into some really useful concepts from “A Mind for Numbers,” showing how learning can be both more effective and, dare I say, even fun. We kicked things off with the focused versus diffuse thinking modes and how switching between them can really boost your problem-solving abilities. Then, we went after procrastination, understanding it as a habit—a loop you can actually break using stuff like the Pomodoro Technique and just rethinking how you approach tasks. Lastly, we talked about memory techniques: chunking, spaced repetition, visualization, and even just good old handwriting, all to help you really nail down and understand information. Drew: So, if I'm hearing you right, the core message is this: Your brain isn’t just sitting there passively absorbing data. It’s more like an engine that needs to be actively managed. By figuring out when to laser-focus, when to let things simmer in the background, and how to actively play with the material, you're really turning learning into something creative, something you're in control of. Josh: Exactly! And this is what I want everyone to “really” remember: learning isn’t some gift you’re born with. It’s about training your brain! The techniques we've talked about today? They're based on solid science, and they prove that, with the right approach, anyone can tackle even the toughest challenges. Drew: Alright, so whether you're wrestling with some impossible equation, cramming for that exam, or just trying to level up your skillset, remember this—you now have the tools to do it. Now, the only thing left is to actually use them.