> everything has a 3-5 year engineering life Nope. 30+ years of experience here working for different software companies in 5 different countries. I still use

> everything has a 3-5 year engineering life Nope. 30+ years of experience here working for different software companies in 5 different countries. I still use most of the knowledge today that I learned 30 years ago. Software development fundamentally changes very rarely. However software development fashion changes all the time. But the latest fashion is just a slightly different implementation of the same underlying fundamental things I already understand. It is just a slightly different flavour of ice cream.