Empathy (google) “the ability to understand and share the feelings of another.”
Einstein states Special Relativity is that time & space are experienced differently depending on one’s state of motion.
We can add to that General Relativity that time & space warp and curve with the presence of matter of energy.
My mother says empathy is the feeling after living in someone else’s shoes.
These are the proofs that empathy is harder to envision than we could ever know. “If it were me” syndrome never takes into effect the nuances of another state of motion or the warp and curve at the moment energy passes through.