several battery breakthroughs that will dump the cost way bellow the holy grail of car batteries of $100/kwh that makes them on pair with ICE cars. Some estimates predict that they will go way bellow $80 in 2021-22, Means end of 2022 beginning of 2023 will be flooded with even cheaper comparing to Model 3 cars with better quality batteries. Good quality $25-30k electric car will be a new reality. Those segments attack bestsellers like Toyota Camry etc... I'm pretty sure the price war will push them even lower within 1-2 years. Means full line of EV's from very cheap to luxury by 2024-25 on a scale from multiple companies. As a result we will have cars on the market that cost the same, perform better, and cheaper in a lifetime from service and fuel perspective. Millennials and GenZ also very eco-friendly, which means younger people are eager to buy EV's. The only delay could be new battery terra-factories rollout lag. That might give an extra 1-3 years lifetime for ICE. After that the traditional car market will be shaking as never before.