> DuPont scientists then conducted tests on humans, asking a group of volunteers to smoke cigarettes laced with C8. This is definitely not my area, but ... wa

> DuPont scientists then conducted tests on humans, asking a group of volunteers to smoke cigarettes laced with C8. This is definitely not my area, but ... was this a good experiment to do? I don't just mean from an ethical standpoint (though that seems super sketch), but purely as an experiment to understand how this chemical impacts the human body, this seems not great? (a) if you smoke a cigarette, isn't the actual dose of C8 taken in by each subject likely to be both variable and hard to measure? Different subject would have just exhaled vs absorbed different amounts of C8, right? So it seems like you get a less precise dosing than most other means of getting it into the body? (b) couldn't this have been toxic in the lungs in a way which wouldn't have been relevant to other/more typical means of exposure? Does reacting badly to something inhaled as smoke really imply anything about the impact of touching or ingesting it? I'm pretty sure e.g. that cayenne smoke would cause you problems that touching or eating that same substance would not cause.