Is this pattern recognition or collective unconscious?
Recently I've been experiencing a lot of déjà vu. Some would explain it as a memory misfire or even parallel selves having a blast, or as Jung would say, 'recognition of immemorially known' ( his book Memories, Dreams, Reflections )
And this has been happening a lot. I meet new people and I have this sensation that I already know them. I know what they will talk about, what their personality might be like, and I get the feeling that I have already had that particular conversation with them.
Another situation: I travel to a new country and instead of being surprised by all this novelty, I feel like I've already been there.
Is this..neurological (pattern recognition, memory misfire), psychological ( archetypal patterns via the collective unconscious ) or something different? Or am I simply overthinking things?