>>3217640That's certainly a core theme, but the heavy focus on technology, aspects of human nature and existence, and occasionally theology all have just as big a place in the series. Even Lain's loneliness and disconnection from others is side-by-side with a disconnection from the self and reality, the existential self.
I don't think Lain can be "overthought". It requires, and quite frankly, deserves its fair share of analysis.