Our lives should be established in such a way that people can recognize us by looking at our shadows. (You are legend if you recognized him🐸) Since the frequency of each person's voice is different, it is possible to differentiate them from their voice. However, you can only identify by looking at the voices or shadows of people who are very close to you or a person established in the society. Many people can recognize the shadow man in the picture because he is very famous in the society. He is a doctor, police officer, fire service officer and humanitarian. I'm sure many going to unsbscrb me after recognize him😂