x1 errs in being identical to x2 (object/person); x1 loses themselves in being x2; x1 errs in being a clone, caricature of x2; x1 has an identity crisis, typecasts themselves.
x1=sr1=m1=se2 errs in being identical to x2=m2 (object/person), an error under conditions x3=sr3 by standard x4=sr4=m3; x1 loses themselves in being x2; x1 errs in being a clone, caricature of x2; x1 has an identity crisis, typecasts themselves.