[johnea]

With regard to batteries:

It's also important to separate "commercial availability" into "commercially available in the US" and "commercially available for everyone else"

The US petroleum and automotive industries are spending many multiple millions of $$s to make sure the latest battery and electric car technology is not available inside the US.

This is a good example:

BYD Seal 08 debuts with Blade Battery 2.0: 1,000 km range, 5-min charging, 684 hp

https://electrek.co/2026/04/27/byd-seal-08-blade-battery-2-1...

This is a car in production in China now, which has 640 miles of range on one charge (not many gas cars have that range) and charges 10-70% in 5 minutes. Of course, the chargers that perform that high speed charge are also not available in the US.

With regard to quantum: let's just not drag that into a discussion of batteries.