While speaking at an Institute for Sustainable Energy and the Environment (I-SEE) seminar run by Bath University this week, we were asked an interesting question by a PhD student researching consumer decision-making – what if EV penetration reverses or saturates, how will things proceed from there and shift to 100% EVs? This was after we told the seminar that by 2040 over 1 billion electric vehicles would be driving around the world’s roads. It’s a reasonable question. We’re sure the work on consumers in his research is really valuable and should show when a transition could lock up, and when it requires an extra push from government policy makers. But we thought we’d share the answers we gave him, because…