I also agree with Gary.

In order to keep your mind sharp and not become stale you must constantly keep learning.

At work, in order to keep up, I have to learn Excel, Access, Word etc. along with all the other programs that make my job easier. The operators on the plant floor learned on a basic lathe, however they are now programming CNC machines operating Co-ordinate measuring machines, computers, & digital measuring equipment. They must do this to provide the customer a better product. If they don't someone else will. The Chinese have no problem learning the new technology and taking away the US jobs.

Don't be a DoDo bird. Keep learning and improving. The end result is very rewarding.

Jerry