I am also an over 40 developer.<p>Honestly, the basic gist is this, stay current, pay attention and learn what is coming out and don&#x27;t criticize what you don&#x27;t yet know.  If you stay current, learn and are always expanding your horizons, your age matters none.  In fact, it works for your benefit because few can say they have the experience with the forethought that you can give a topic.<p>So the basic take away.  Continue learning, don&#x27;t be a dick, and help those coming in behind you.  So basically, be a decent person and its amazingly a better place to be.<p>Sorry but overall that is how I read this.