eli5. How has marijuana gotten so much more potent over the years but the opposite for cocaine?

Question

80’s coke is often talked about in songs/movies/ tv as being pretty wild stuff, where as marijuana is now
~4x more potent.

In: 12138

Answer 1

you can still find that pure stuff if you look hard enough. when I lived In Portland we found a supplier that was pushing 85-95% pure coke and it was wild. one scratch line felt like a fat rail of some cheaper stuff. although there is a big price difference.