Why GKS ?

TL;DR

In my last position, I was the oldest in the company, and some younger people had taken to calling me 'granpa.' Admittedly, at first, it tended to annoy me, but a scene from a movie came to mind. The Postman with Kevin Costner, the scene where an elderly person joins the resistance alongside youngsters. This intrigues 'The Postman,' who asks him why. His response inspired me: 'I know stuff.'