Congratulations on your continued endeavors, Denis! I retired from my main career a couple of months ago. I feel like 70 is my nominal age but the past and future are also nominal in their right. If you are familiar with the balanced attributes of ‘unity gain’ then you know what I mean. Not having the steady ‘well-paying job’ and its responsibilities takes some getting used to. It's nice to know I don't have to do anything for income, but if I have a fear, it is that I'll stop yearning for self improvement. Can't let that happen.