an existential double of a living
person;
like doppelgänger, but in existence not appearance;
a person who is uncannily similar in terms of interest, behaviour and existence in general to you, to the point where it's scary but somehow
epic simultaneously.
origin -
Dutch translation of "counterpart"
DUDE! I
Just spoke to this guy/girl, he's/she's exactly like me!
like a doppelgänger?
No, even
better, a tegenhanger. Looks very different, but thinks and behaves exactly the same!