With all due respect people who have never smoked the kind in the 70's wouldn't know, now would they?
The weed from the 70s was not only different it was much more dank and potent than anything these days. Just my opinion but I smoked weed in every decade since the 60s, so I know its true.
This is a picture of some real Columbian gold from the mid-70s
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..this particular bud is the second most powerful weed I've ever smoked in my life
The most powerful came around a few years earlier in 1973 (or 4) and was sold as Panama or Colombian red, I can't recall which but it was the strongest weed that I've ever smoked in my life! Better by tenfold compared to anything these days, more than 10 fold