... and why!

less than 1m read

·Nov 10, 2024

The reason this trick works every single time is elegantly simple. It has everything to do with the fact that their chosen card will always be in a pack that is third from the top.

That's because we had them take the pack containing their card, see? There's Boron, and put it on one of the piles. Then we had them put two more piles on top of that one.

So this stack is in order: pack number one, pack number two, pack number three, which contains their card, and at the bottom, pack number four. When they deal the cards out into rows, they are changing the packs into layers.

See, here we go! We've got 1, 2, 3, four cards. These are the cards that made up pack number one. Here comes pack number two; it is now becoming the second layer.

The third layer will be the components of pack number three, including Boron, their card. So when they finish and take the pack containing their card, because it is part of the third layer, it will be the third from the top, which means it will always be the third card from the left. Boron. [Music]

I'm going on live because I'm bored

Thoughts on the nation's report card

View All

Factor markets worked example | Microeconomics | Khan Academy

We’re told that Epic Eats is a perfectly competitive profit-maximizing producer of stuffed sandwiches and hires workers in a perfectly competitive labor market. Part A says draw side-by-side graphs for the labor market and for Epic Eats and show each of …

Humans Are Exceptional

Three out of these four theories have an interesting pattern to them, with good explanations in epistemology. We’re saying conjectures and their refutations, and error correction is how we improve knowledge. With genetic evolution, genetic mutations, vari…

Tesla Stock Dividend is just a stock split

Tesla shares are trading higher today after they filed something signaling a stock dividend. But what is a stock dividend? Well, it’s definitely not a dividend. A stock dividend is actually just a stock split with the word “dividend” mixed in to make it s…

What Will Happen If the Rivers Disappear? | Short Film Showcase

[Music] It would make a huge difference, folks. We’re making the decisions; we’d get out and see just how special Texas rivers are and Texas bays are. I have to believe it would change the way they approach decisions, really understand what’s at stake. S…

Using matrices to manipulate data: Pet store | Matrices | Precalculus | Khan Academy

We’re told a certain pet store chain has three types of dog food, and each comes in bags of two different sizes. Matrix A represents the store’s inventory at location A, where rows are food types and columns are bag sizes. So, see, it’s store A that’s wha…

Estimating to subtract multi-digit numbers | Grade 5 (TX TEKS) | Khan Academy

So we have two subtraction problems here that I want you to estimate. I first want you to estimate what 51,384 minus 28,251 is, and then I want you to estimate what 761,023 minus 18,965 is. This little squiggly equal sign means approximately, so you’re on…

... and why!

More Articles