The obsidian trade goes back a long way, this technology is likely to find samples from previously unknown sources.
I don’t doubt that for a minute!
Each new discovery in technology leads to many, many more, and each new find in archeology leads to answers for the questions of the last thousand finds.
This is not random, and it’s not “chance.” We need to know it ALL! And we are finding answers where we least expect them!
Thanks for the ping!