It's about scalability and all the options on the table. We've got self-recharging diamond batteries that contain plutonium from refined nuclear waste estimated to last a minimum of 20,000 years. Theoretically this could entirely replace batteries needed for pacemakers and any small cell battery. There could be ways to scale it up even further, we'll just have to figure out a way how.

That's just as promising as sodium power because it gives us another opportunity. It's a way to reduce waste (nuclear waste is tricky to get rid of). It's just about ability to deliver. Diamond batteries have been in production and were supposed to be available this year - chances are slim that will still be the case though lol.