Hardly stagnating. Improving rapidly, perhaps. Not an exponential curve, but steady linear growth in capacity. https://arstechnica.com/science/2021/05/eterna

Hardly stagnating. Improving rapidly, perhaps. Not an exponential curve, but steady linear growth in capacity. https://arstechnica.com/science/2021/05/eternally-five-years-away-no-batteries-are-improving-under-your-nose https://arstechnica.com/science/2021/05/eternally-five-years...