> At current consumption there are ~430yrs of known reserves, with factoring in projected growth, they will last ~200yrs.

So, a doubling every 5? 10? years, if the gigafactory is a start of a trend, rather than the last great battery factory?

Those 200 years would then be cut quite drastically!

[ed: whops, misread "projected growth" for "project growth" (ie: growth due to the gigafactory alone. Still, I think the point stands that accelerating demand could change the sustainability of resources.]