> We don't have to replace most of the inputs if we replace them with more efficient ones. A lot of people ge their back of the envelope math wrong and consider

> We don't have to replace most of the inputs if we replace them with more efficient ones. A lot of people ge their back of the envelope math wrong and consider only the energy input and not the output. This was Tesla’s main claim at their recent energy presentation. Page 4 of the doc[1] shows our waste heat to useful work is roughly 2 to 1 [1] https://www.tesla.com/ns_videos/Tesla-Master-Plan-Part-3.pdf https://www.tesla.com/ns_videos/Tesla-Master-Plan-Part-3.pdf