Oddly Wired
← all facts
perception

You believe objects have a hidden true nature.

Psychological essentialism asserts that people believe certain categories—primarily natural kinds—possess an underlying, unobservable essence that determines their identity.

While Medin & Ortony (1989) established the theory, the 'original vs. replica' example is a later application of essentialist thinking to artifacts, not the foundational argument of that specific paper.

You attach meaning to the object, not the substance.

Where this comes from

Study
Medin & Ortony, 1989, Similarity and Analogical Reasoning
What the check found
Medin & Ortony defined psychological essentialism for natural kinds. Extending this to artifacts as a core proof is a secondary application of the theory, not the primary focus of the 1989 paper.
Confidence
Solid, with limits

Related

One of these every day, and every one names the study it came from. When a finding is contested, it says so.