There is a bias in which we think that others think the way that we think that they think.
This is not to say that we are always wrong or even tend to be wrong about what others think.
It is just to say that this bias exists, and that to be made aware of it is of value.
It is also to be said that consideration of such a bias is of value.
To consider such a bias is especially of value as a scientific consideration.
That is to say consideration of such a bias lends towards doubt and questioning, notably scientific pursuits.
And it is not doubt merely in the negative sense of the word, whereby one is left less certain of the truth of things.
It is doubt regarding ones dispositions towards others, ones assertions about others, and critically ones assumptions regarding others.
It is questioning what we assumed to be true of others, what we may have decided was true of others, what we may or may not have believed about others.
All of which leads us towards reconsideration which at it's least affords us new perspective.