Math is basically magic. So it’s no surprise that a clever use of the Fibonacci numbers—a series of numbers (1, 2, 3, 5, 8, etc.) where each number is the sum of the two preceding numbers—and a super-slick shuffling method can combine for a card trick that makes it impossibly easy to guess the number and suit of the two cards you’re holding.
Since we’re limited by our own perspective, every story can always be told differently. People see things differently. People remember different things. People tell stories differently. Because, well, people are different. We only remember what we can, we need the full picture to see it all.