> heroin itself is becoming safer as its use becomes widespread That definitely was true for a while, not sure about in the last few years. A less controversia

> heroin itself is becoming safer as its use becomes widespread That definitely was true for a while, not sure about in the last few years. A less controversial analogy might be with coffee, where the rate of people overdosing is probably lower now that it's no longer mainly used by Sufi mystics in enormous doses for entheogenic purposes.