Support for Nanobots Shrinking
I read about one interesting way to power nanobots. Apparently if you circularly polarize a laser beam, and then have the polarity spinning rapidly enough you can actually turn small things with it. It's patented in genetic engineering for example. So technically you could spin a small cog with lasers, and for example flick the beam rapidly to different cogs to move all kinds of machinery. If the spinning was fast enough it might even act like a drill.