Given that most of the health risks around cannabis (and tobacco I guess) involves the whole "inhaling burning debris" part of it, I'm starting to think the focus on the drug itself over drug delivery has been a major detriment to the whole issue. Ignoring the substance and instead shifting anything that isn't horribly addictive (though cocaine was once in Coca-Cola...) to your much more robust digestive system over abusing your lungs or mucous membranes seems like it would solve many of today's drug problems