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TIL: ELI5

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A complex topic, explained like you"re a 5-year old.

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1:44

The Dunning-Kruger Effect

TIL: ELI5 ·

2023/04/24

The Dunning-Kruger Effect is a scientific concept that explains why people who know very little about a subject may mistakenly believe that they know a lot about it. In simple terms, it's when someone is too inexperienced or unskilled to recognize their limitations in a certain area. Imagine you just started learning to play the guitar. You might think, "Hey, this is easy! I can already play a few chords!" But as you continue learning more about guitar techniques, music theory, and

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2:07

The Fermi Paradox

TIL: ELI5 ·

2023/04/24

Have you ever looked up at the stars and wondered, "Is there intelligent life out there?" It's a big, mind-blowing thought, and many scientists believe that extraterrestrial life may indeed exist. This brings us to something called the Fermi Paradox – a contradictory idea that leaves us scratching our heads about why we haven't found intelligent life beyond Earth. The Fermi Paradox was named after physicist Enrico Fermi, who asked the famous question, "Where is everybody?" at a lunch with

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2:29

The Bayesian Inference

TIL: ELI5 ·

2023/04/24

Imagine you're a detective trying to solve a mystery. You start with some initial belief or guess, and as you gather more information, you update your belief to be more accurate. This is the basic idea behind Bayesian inference, which is a way to update probability estimates based on new data. In simple terms, Bayesian inference is a mathematical tool that helps us get closer to the truth by combining our initial beliefs with new evidence. This technique is named after Thomas Bayes, an

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1:50

General Relativity

TIL: ELI5 ·

2023/04/19

General Relativity is a scientific theory about gravity, proposed by Albert Einstein in 1915. It is a complex idea in physics, but we will try to explain it in simple terms that anyone can understand. You can think of gravity as a force that attracts objects towards each other. The more massive an object is, the stronger its gravity. This force is what keeps you on the ground and the Earth in its orbit around the Sun. Einstein's idea was that gravity is not just a force between objects,

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2:27

Dark Matter and Dark Energy

TIL: ELI5 ·

2023/04/14

When we look at the universe, we can observe planets, stars, and galaxies visible to us. But there's more out there that we can't see, and sometimes we have to rely on indirect evidence to understand it. One such mystery in the vast expanse of space is the existence of dark matter and dark energy, often misunderstood concepts that are essential to understanding our universe. First, let's talk about dark matter. This invisible material makes up around 27% of the universe, but it doesn't

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2:03

Quantum Superposition

TIL: ELI5 ·

2023/04/10

Quantum superposition is a fundamental concept in quantum mechanics, the branch of physics that deals with the behavior of very small particles like atoms and subatomic particles like electrons and photons. It's a complicated idea that can be hard to wrap your head around, but let's break it down into simpler terms. In classical physics, which explains the behavior of everyday objects like cars and planes, things have well-defined properties like position and speed. We can predict with

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1:56

The Heisenberg Uncertainty Principle

TIL: ELI5 ·

2023/04/09

The Heisenberg Uncertainty Principle is a fundamental concept in the world of quantum mechanics. In simple terms, it tells us that we can't precisely measure certain pairs of properties of a particle at the same time. The most famous example of this principle involves position and momentum (which is mass times velocity). Picture yourself trying to look at a very small and fast-moving particle, like an electron. The only way to locate it is by shining light on it. But here's the catch: when

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2:26

Black Hole Information Paradox

TIL: ELI5 ·

2023/04/08

Imagine you have a library filled with millions of books containing countless precious details about our universe. Now, let's say this library gets swallowed up by a black hole, an incredibly dense region in spacetime that has a gravitational pull so strong that not even light can escape it. What happens to all the information stored in those books? This is the essence of the Black Hole Information Paradox. To understand this paradox, we must first know a bit about black holes themselves

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1:53

The Butterfly Effect

TIL: ELI5 ·

2023/04/06

The Butterfly Effect is a concept that's part of a bigger topic called "Chaos Theory." It's the idea that small changes can lead to much bigger changes over time. Picture a butterfly flapping its wings in Brazil, causing a tornado in Texas weeks later. Sounds crazy, right? But that's the basic idea behind the Butterfly Effect. Now, you might be thinking, how can something so small and delicate as a butterfly's wing have such a massive impact, like creating a tornado? Let's break it

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1:30

Schrodinger's Cat Paradox

TIL: ELI5 ·

2023/04/05

Now let's dive into a thought experiment known as Schrödinger's Cat. This concept comes from the world of quantum mechanics and was proposed by Austrian physicist Erwin Schrödinger in 1935. Although it sounds complicated, I'll do my best to explain it in a simple, understandable way. Imagine you have a cat inside a completely sealed box. Also in the box, there's a radioactive atom, a Geiger counter (a device that detects radiation), a vial of poison, and a hammer. When the Geiger counter

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1:47

The Holographic Principle

TIL: ELI5 ·

2023/04/04

The holographic principle is a somewhat complex and intriguing idea in the realm of theoretical physics. In simple terms, this concept suggests that our three-dimensional universe might be projected from a two-dimensional surface or "boundary." Imagine how a hologram on a credit card appears 3D but is actually just a two-dimensional surface that tricks our eyes. To understand this principle, we need to first consider how we perceive and interpret the world around us. We usually assume that

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1:13

Chaos Theory

TIL: ELI5 ·

2023/04/04

Chaos theory is a fascinating concept in science that helps us understand how even small changes in certain conditions can lead to big differences in outcomes. Imagine you're playing a game of pool, and you hit the cue ball just a little bit harder or softer than you intended. The change might seem insignificant, but it can cause the other balls to move in completely different ways and change the outcome of the game dramatically. This same idea applies to the world around us. Chaos theory

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1:26

Quantum Entanglement

TIL: ELI5 ·

2023/04/03

Quantum entanglement is a strange concept in the world of science that comes from the field of quantum mechanics. In simple terms, it's a special connection between two particles that makes them behave as if they were one, even when they're far apart. Imagine you have a pair of gloves. You put one glove in a box on Earth and the other on Mars. Now, if you open the box on Earth and find a left-handed glove, you can be 100% certain that the glove on Mars is right-handed, even without

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1:29

The Double-slit Experiment

TIL: ELI5 ·

2023/04/03

In the world of physics, there's a pretty famous experiment called the double-slit experiment. To keep it simple, the experiment shows that light and other tiny particles can actually act like both waves and particles at the same time. Confusing, right? Let's break it down. Imagine you have a wall with two tiny slits in it, and behind that wall is a screen to capture whatever passes through the slits. When you shoot particles, like little bits of light, at the slits, you would expect to

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