Back in the day, late 60s, early 70s, you used to hear folks reference "Gresham's Law" when talking economics. This was during the debate about taking silver co

Back in the day, late 60s, early 70s, you used to hear folks reference "Gresham's Law" when talking economics. This was during the debate about taking silver coins out of circulation, and going off the gold standard. I wonder how Gresham's Law pertains to coexistence of dollars and cryptocurrency?