... 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]

Punic Wars between Rome and Carthage | World History | Khan Academy

The Housing Market Just Went ABSURD

View All

15 Ways to Create GENERATIONAL WEALTH

You know, by the time 65 rolls around, only one in 100 people will be well off financially. 70% of wealthy families lose their wealth by the second generation; more so, around 90% of families lose all wealth by the third generation. So, even if you do mak…

Change in period and frequency from change in angular velocity: Worked examples | Khan Academy

We’re told that a large tire spins with angular velocity (4 \Omega). A smaller tire spins with half the angular velocity. I’m assuming half the angular velocity of the large tire. How does the period (T{\text{large}}) of the large tire compare with the pe…

Derivative of __ | Advanced derivatives | AP Calculus AB | Khan Academy

What we have right over here is the graph of ( y ) is equal to ( e^x ). What we’re going to know by the end of this video is one of the most fascinating ideas in calculus, and once again, it reinforces the idea that ( e ) is really this somewhat magical n…

Writing exponential functions | High School Math | Khan Academy

G is an exponential function with an initial value of -2. So, an initial value of -2 and a common ratio of 17th. Write the formula for G of T. Well, the fact that it’s an exponential function, we know that its formula is going to be of the form G of T is…

Shouldn't We Just Copy Warren Buffett's Portfolio?

I could not come up with these ideas on my own. I came up with this idea from Warren and Charlie, and I copied it. So, one of the most important models that you can adopt is the model of cloning. When you see someone doing something smart, uh, just incorp…

Alienated | Vocabulary | Khan Academy

Hey wordsmiths! Just checking in; you doing okay? The word we’re talking about today is “alienated.” “Alienated” it’s an adjective and it means feeling excluded and apart from other people. Kind of a bummer word, but at the same time, a fascinating one. …

... and why!

More Articles