I'd like to think that in the future we will have developed the technology to absorb the sting from nettles and use it to power our smart phones instead. A man can dream, right?
I imagine it'd be easier to harness the sound energy from me cursing after running through it. I'll check to see if there's an app for that.
Or...what about a skin suit that is impervious to nettles or a spray on suit????
Let's be reasonable LKohn, that sort of technology, is years behind us, not years in the future :) we like to look forward on this blog ;)