How long is 5 cm? How slanted is 5 degrees? How long is 5 seconds ? Can you really show us the length, the angle, and the time accurately? Probably, not. Tragically, you became a top-heavy adult before you know it.
You will surely say triumphantly “This is it!” but you turn out to be wrong. So here’s “Hakalympic” for you, an app of the world championship for measuring your sense of scale! You can go for the king of measurement in each event or in all-around events in “Hakalympic”. Try the world championship with your sense.
When you become a champion, you can probably say,"The person who laughs at 1mm cries because of 1mm".