If you were to zoom in on something really small, is there any limit of the smallest physical unit that you can take at each step?
Explaining what I mean by the example of 2D graphics, you are limited by pixels. You can't move half a pixel in an animation (without masking it with some methods)
Are there similar units in the physical world? Is it a Planck's length? If your finger moves from point A to B, do the particles "jump" from Planck's length coordinate to another? If not, wouldn't that mean that it's not the smallest, and maybe universe is infinitesimal?