If you sight the Moon at
sunrise and sunset,
...You can estimate the distance
from the Earth to the Moon.
And if you sight a star
from opposite sides of
the solar system,
very precisely... ... You can estimate the
distance to the star.
The word triangulation used to be a scientific term but it has entered
common language now.
Now it is used when two people are exchanging points of view about
some other person or object or phenomenon, and describe how that
thing appears to each of them.
Maybe someone is a pain-in-the-ass to me but he’s nice to you. At
least now I know that he’s not a pain-in-the-ass to everyone, and that
I should be thinking about how I interact with him.
I like to think of this as another example of how scientific thinking
becomes common thinking, and how we can get along a little better if
we take advantage of scientific ideas.