I don't think it's about technology here. It's about economics. Electric cars (credits to Tesla), especially the first generation basically used a ton of the s

I don't think it's about technology here. It's about economics. Electric cars (credits to Tesla), especially the first generation basically used a ton of the same cells found in (some) laptops. The demand for electric cars, thus batteries fuelled a huge increase in manufacturing capacity, which dropped prices. And maybe I'm wrong but the cheaper batteries made drones more affordable, so that industry got a boost with investment. A lot of things aren't limited by technology, but by capital and market incentives. Which to me actually shows the limitations of this system as we could have had electric cars decades ago. We could have had this revolution decades ago. What a different world we would have had.