Why will specific details about the physical appearance and the customs or early peoples never be fully known?

Specific details about the physical appearance and customs of early peoples may never be fully known due to the limitations of archaeological evidence and the passage of time, which can lead to the decay or loss of artifacts and remains. Additionally, the interpretations of findings can vary among researchers, and cultural practices may not have left tangible traces. Furthermore, the diversity and fluidity of human cultures make it challenging to generalize or reconstruct a comprehensive picture of past societies. Ultimately, the absence of written records for many early peoples further complicates our understanding of their lives.