Erik, I really like your comment, "Besides, it is too easy to be pessimistic -- there is no intellectual challenge there. Optimism takes work!"
You know I'm asked about my views on climate change all the time now. Will be quoting you a lot more.
Indeed Erik, optimism does take some effort. I am so glad to read that you are feeling much better.
As always, with lots of love and the best wishes for you, Marcia, and the rest of the family