Electric Propulsion Reality Check

pnichols wrote:
I suspect that RVs will be real popular when the first and final - or next to the first and final - world catastrophe occurs. Already thousands, or hundreds of thousands(?), folks full time live in RVs. Just wait until the rest of us can no longer live in our homes/apartments/tents due to the catastrophe ... RVs may be priceless, then, if they have enough fuel left in their tanks to somehow escape the affects of the catastrophe.