And why does this miracle material function as it does?, just cos?

I wonder how toxic hexagonal boron nitride nanoparticles are. I hope a few of these transformers are deliberately made to explode (commercial ones do so regularly). Toxicity tests should be foremost in everyone's mind, particularly after the PCP toxicity scandals of the last several decades.

I had one of the overhead transformers blow up several years ago in my neighborhood. The entire area around the transformer required 10's of thousands of dollars in cleanup, the street was blocked for more than a week, and the law suits are probably still be in process. You could find drops of the oil itself several hundred feet away, all poisonous.