"Once the algorithm is good enough at imitating you that your own mother can't tell the difference between a robot containing that algorithm and you, is there s

"Once the algorithm is good enough at imitating you that your own mother can't tell the difference between a robot containing that algorithm and you, is there still a difference. And now every mathematician should say "No". After all, 4 and IV is the same number." I don't understand what you are talking about. Do you think identical twins share the same consciousness? Is a clone the same person as who it was cloned from? It seems to me that "4" and "IV" are abstract concepts that have a basically unlimited number of relationships with the real world, like tentacles. The mathematical concept of four is just one of those linkages.