If it takes 2-4% of the world's current electricity production to propel the things alone, we're maybe not ready to do it quite yet. But we're ready to start t

If it takes 2-4% of the world's current electricity production to propel the things alone, we're maybe not ready to do it quite yet. But we're ready to start thinking about it. Just like we dreamt about rockets going to the moon decades before we attempted going to the moon.