I've worked with many 28 old wring in PHP4. But, somehow, I feel that there is hope for them - someone 50 year old dog might show them the light.

I've made John 50 because I wanted to make it too late for him to fix things (although he still stands a pretty good chance to get back on track). Do not wait for something to happen. Stop repeating "Will read this book after the next release" - start reading now in you spare time.

Improving constantly is the main moral of this story. It has nothing to do with age.