metis
aged ecumenical anthropologist
I still can't figure why Einstein was so concerned with light in outer space. I mean big deal...when I was in school and with some brainy people (I was in the Honor Society among other groups like that), I thought what's the point? But anyway, he died and as I understand it thought he'd had anough of this life.
What he hypothesized, which was eventually proven to be correct by others, was that time is relative, thus not static. Also, he hypothesized that spacetime was not a constant. He was proven correct on both.
I was just hearing a report about lithium batteries and how people want them, but the cost factor comes into play with the manufacturers. They know they're polluting the atmosphere, but hey, money is money I suppose.
It is far less polluting than the carbon emissions from other sources.