“The beach is a dynamic and changing geomorphic formation, which is constantly changing” (...) " “They are subject to extraordinary changes generated by the action of the waves, the climatic events, the action of man, etc.” (...) “That is why you cannot say that one went twice to the same beach, as today’s beach is not identical to yesterday’s and will not be identical to tomorrow’s”. Life as a beach is an unstable and changing land, where unexpected events that do not depend on us take place. Life can change us in a flash. Moreover, we pass through multiple stages over time. We grow and learn while we live. People change over time and, therefore, allegorically regarding the foregoing paragraph, it could be inferred that it cannot be said that someone knew a person, since the person one met today is neither the one he/she was in the past nor the person he/she will be in the future.