I'm looking for a term that applies to the kind of mindset/thought process where someone sees a couple of similarities between two things, then decides that 'They're the same' or 'They just copied each other!'
I thought it was 'lazy pattern matching' but that seems to be a software term, 'false pattern recognition' might have been what I was thinking of: Seeing patterns that aren't there. I'm just not sure if it still applies when the two things do have similarities, but also enough differences that it seems a little quick to judge them as being the same. 'Thin-slicing' seemed like it might be applicable as well.
A couple of examples:
When the video game Nioh came out some people described it as a rip-off of The Witcher because the main character in both games has white hair and wields a sword.
Jeff Goldblum tells stories in interviews of how he gets a lot of encounters with strangers who think they look like him. Sometimes they just turn out to be men in glasses.
Is there a better term for these comparisons than 'false pattern recognition'?