Why we misjudge size, and how to get better at it
Size is never seen directly. Your brain works it out from clues like distance, shadows and the things around an object. When those clues are missing, it guesses, and it often guesses wrong.
The neighbour effect
An object looks bigger next to small things and smaller next to big things. A circle surrounded by tiny dots seems larger than the same circle surrounded by big dots. In True Scale, the reference object pulls your guess toward its own size.
Height feels bigger than width
Many people see a vertical line as longer than a horizontal line of the same length. Tall towers can feel bigger than long ships even when the numbers say the opposite.
We remember things as bigger
Famous landmarks often feel huge in memory. Many visitors are surprised that the Leaning Tower of Pisa is only 56 m tall, or that the Arc de Triomphe is 50 m.
How to get better
- Use a known yardstick: a person is about 1.75 m, a door about 2 m, a floor of a building about 3 m.
- Count units: a 30-storey building is roughly 100 m tall.
- Check proportions, not just height. A wide object can fool you in height.
- Play a little every day. Feedback right after each guess is the fastest way to learn.
Ready to train your eye? Play True Scale or a quick run of Survival.