Before I read the other responses, I'll give you my first impression of the statement.
There is a saying about being on the same wavelength, being in the same frame of mind, being on the same page with another person or group.
As a person gets older, patterns develop & we take notice.
Many times have realized I am not thinking the same as others -- this realization comes from their reaction to my responses, comments, actions, ... et cetera. When that realization occurs many times, in different situations, a broader cohesive idea develops -- that I do not think or understand the world the same as many others. Several professors have commented to me about my writing, interpretations, & ideas. Sometimes they say I have brought them very original ideas. Other times they tell me I am understanding the material completely opposite to how I should be understanding it ("exactly backwards" are the words one professor said many times).
Have been told they are never bored around me. Boredom comes from low stimulation. That must mean I stimulate their mind. Sometimes the stimulation they feel is negative (evidence by their angry or vitriol responses) & sometimes positive (evidence by their smile, laugh, or interestingly informative responses).
It can be deduced, from my experiences with many interactions, that I do not think in similar ways as the general population in the areas I have lived. The thoughts of others are revealed within their actions & comments. The chatty people are easier to compare myself to. If their words don't match up with my thoughts, then it can be assumed their thoughts processes/methods are different than mine.
My interpretation of the statement may evolve when I read other responses.