The line’s two halves, each side of the dot: exactly the same length.
Bigger or smaller?
Judd illusion
Is the dot in the middle of the line?
Yes: exactly in the middle, though it looks closer to the arrowhead.
Why? A cousin of the Müller-Lyer illusion: the arrowhead makes its half look shorter and the fork makes its half look longer.
Picture: Mabit1, CC BY-SA 4.0 · Wikipedia(opens in a new tab)