I cherish the dreams of yesterday and dare not dwell on the err's of my past whose fate has been long decided, and effect I can not change. For the dreams of yesterday are the challenges of today, and the hope for tomorrow.
Anything else you're interested in is not going to happen if you can't breathe the air and drink the water. Don't sit this one out. Do something. You are by accident of fate alive at an absolutely critical moment in the history of our planet.