Originally Posted by
DaveReidUK
From the article:
"The company is relying heavily on innovation in battery technology continuing to improve at its current rate. If not, the firm will not be able to build in enough power to give the plane the range it needs."
Seems to address the point.
A bit like someone in the 1960s saying - "we're expecting the speed of airliners to continue improving at its current rate... so by 2010 we'll be flying around at mach 10"