To explain his original post:
Chris Renfro is the owner of Outsville. They make chalk. Taom and other similar chalks have taken over the market because they are clean.
Chris believes these chalks all contain nano particles and are made in China. He also believes these are bad for you. He has been saying this for some time on Facebook.
He has now come out with his own “clean” chalk, without nano particles, which he is calling Atomic chalk.
To be clear I’ve never seen his new chalk and don’t know how it works. Nor do I know whether his claims have any truth to them. I’m just explaining his post.