The Simple Truth about the Nubs!

If you've been there, then you know that THIS MAKES SENSE. Yes,, it IS this simple.
Please also watch the 'How to Soften Granite' at https://youtu.be/AcoQ6JmYJgs

00:00 - What are they for? INTRO
02:20 - Sonics and Vibrations
03:17 - So where are these tools now?
04:34 - We were a part of what was, a LONG time ago, but then it ENDED.
05:12 - Summary.