I for one have a slightly over active sympathatic nervous system. This means its harder for me to fall asleep, I have sweaty palms often and I sometimes feel 'wired' in general. If there was an implant that I could use to turn this all down a little bit, like a particular drug I happen to know of, I would seriously consider it. Please don't generalize about people's needs or drug use because that really hurts fringe people like me in the scheme of things. You have no idea the social stigma of matters like these, especially if you are in a science related industry like I am.

Actually I just wanted to point out that you can show some very direct evidence of global warming in the melting of the ice caps, glaciers and snow covered mountains which we have ice volume evidence for decades. There is a clear reduction in many key areas, and this can be proven with the simplest camera and your eyes, not esoteric data. Denialists see this and still deny, which makes their stance more religious than rational.

The Hubble has a tiny mirror. Imagine what we could see if it was 10m or 20m. We can do it easily! Well ok maybe not easy, but we should do it, no matter the cost.