The Astonishing Math of the Year 2025

The Astonishing Math of the Year 2025

Mathematician Matt Parker explores the unique properties of the year 2025 by transforming a complex mathematical identity into a massive, interactive tiling puzzle.

Mathematician Matt Parker celebrates the year 2025, a date he has anticipated for a decade because it marks the year he will turn 45, the square root of the year. He unveils a deeper mathematical property: 2025 is the square of a triangle number. This discovery led to a collaboration with the firm Jane Street to create the “Partridge Puzzle,” a massive physical installation based on this unique numerical relationship.

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A provocative study published in Scientific Reports challenges our fundamental perception of time. Researchers suggest that at the quantum level, the "arrow of time" may not be fixed. Their findings indicate time could theoretically flow both forwards and backwards, opening new avenues for understanding one of the universe's deepest mysteries.