A chart on twitter has divided opinion on how the EV adoption will occur and what it will mean for incumbent manufacturers and new entrants into the automotive market.

It is provocatively labelled the ‘Valley of Death’ for traditional internal combustion engine (ICE) manufacturers who cling too long to their preferred technology, even as EVs start to dominate new sales in key markets such as China, Europe – and now the US.

Mass electrification of transport, much as mass electrification of lighting, is a signal of energy progress – from the inefficient burning of fuels to the more efficient, cheaper and cleaner use of electricity.

It is analogous to the shift from candles and gas lamps to the incandescent light bulb, and now LEDs.