Too bad I'm not old enough to know what it was like back in the 70's or before then...

I certainly do hope that by selective breeding they are making it more potent, but it'd be such an extremely slow process. I read about some strains having at least 30% THC levels, which is double the average amount of most. With no scientific data to backup how strong things were in the distant past, and only going on the fading memories of older stoners (no disrespect intended), it's hard to tell if things really have gotten stronger or not.

Give it another few decades and then we'll be able to see the data to know if it really is getting better, without genetic modifications. I got my fingers crossed. Hopefully the natural genetic potential hasn't leveled out yet... But THC ain't shit without a good balance of other cannabinoids to go with it. CBD is more important to me...