Is there a fundamental limit to how small physical space can actually get?
We intuitively assume space is infinitely divisible, but physics suggests a hard floor. This video explores the Planck length, a scale so tiny that dividing space further may lose all physical meaning.
If you repeatedly halve the distance between your hands, you reach the width of a cell in 15 steps, an atom in 33, and a proton in 50. By the 115th halving, you arrive at the Planck length, which is approximately 1.6x10^-35 meters.
While it is tempting to assume we can continue dividing space indefinitely into smaller fractions, the Planck length represents a potential boundary. At scales smaller than this, the very concept of distance may cease to exist in any meaningful physical sense.
Source: Can Space Be Infinitely Divided?