I think the problem is not going to be the technology, but the business model. Electric vehicles as a financial proposition make much less sense when the cost

I think the problem is not going to be the technology, but the business model. Electric vehicles as a financial proposition make much less sense when the cost becomes "and a $XXX dollar per month battery swap plan for as long as you plan on owning this vehicle". It also becomes problematic since batteries are the most depreciating major component on the vehicle. If you have a model where I can opt in to have my battery swapped for a brand new one without paying for the entire cost of the new battery, that business will not be solvent for very long. Then there's the disposal/recycling costs. It's still not profitable to recycle the type of batteries we are putting in vehicles, so unless the government is implementing a new EV vehicle tax to help offset the recycling effort, any business model would have to account for that huge cost.