One of the best definitions of Optimism that I have seen is: "that any problem can be solved with the application of knowledge".
The problem being of course is we run up against problems that we don't have the Knowledge to solve.
But it is available.
We are just going to have to expand our range of Knowledge continuously to update appropriately.
Books (more important than ever)
The Access and Ability to learn new information has never been greater - it's the EFFORT to learn that is missing.
Improve your Thinking, Improve your Results.