Why is Saito so old?

Excuse me, but I couldn't help but notice that Saito seems to be quite a seasoned individual. Could you elaborate on why he appears to be so old? Is it perhaps due to his extensive experience in the field of cryptocurrency and finance? Or does he possess some unique qualities that have allowed him to weather the storms of the industry for so long? It would be fascinating to gain a deeper understanding of the reasons behind his longevity and success in this rapidly evolving sector.