Electric planes will replace car and bus trips before they replace gas planes. Short range, on demand, point to point, cheap travel could really be a game changer. Think what you used to do as a two hour drive- battery electric planes will be able to do that, a distance that today isn’t economical because of the high cost of jet and turboprop maintenance and fuel, and the need for runways. All those commenting- “but the energy density” are right, but don’t miss the forest for the trees. The sky is an underutilized asset.