People Live exclusively Off The Energy of The Sun

Has anybody else heard much about this? I also heard some lady was able to live for two years by eating sand alone. I suppose there are minerals and trace elements in the soil that can keep you going. Just though this was kind of cool. Anybody know about either of these. Also I think these people were obviously still drinking water.

I'd have to agree on that one. You'd get cooked like a daisy in the Sahara trying to live on sunshine alone if there were no water involved.