"Efficient" could also be read as "I am willing to sacrifice x Wh to the gods of crypto wealth, where do I get the biggest return?" That might even be a tolera

"Efficient" could also be read as "I am willing to sacrifice x Wh to the gods of crypto wealth, where do I get the biggest return?" That might even be a tolerable mindset if you happen to live in a cold place and the only tool available to keep you from freezing to death was electricity.