I always just thought it was very thorough vaporization, but I could be wrong. I'm sure someone can chime in who knows more about this than me.
I don't know who really knows what in the end, but for now I think you're absolutely right.
Combustion has a scientific definition we can fall back on (good term for us to have stolen IMO). Combustion is where
chemical reactions that release energy happen. Probably the two of most interest are combining the Carbon in the load with Oxygen in the air making it back into CO2 again (where it came from to start with....before it was a different hydrocarbon before it was CO2 and so on). Basically what happens as the burgers cook on the barbie. There charcoal (carbon) is converting with the oxygen you've carefully adjusted the vents for into CO2 and
lots of heat. The other is the similar reaction of the Hydrogen combining with more Oxygen making water (H2O) which due to the temperatures is steam not liquid, again liberating energy stored from sunlight before in stripping the Hydrogen from different water.
The key is all the
extra energy. In a vape that gets combined with the heat we're providing trying to evaporate the goods (no chemical reactions here, just converting stuff from liquid to gas, it can come back again to liquid as 'wand hash' unlike combustion which can't reverse). This higher heat makes more reactions happen, which makes more heat and it 'runs away with itself' in a
chain reaction we can't control.
In the 'fire triangle' lesson from Boy Scouts we have plenty of fuel and Oxygen (two of the sides), give it enough heat (the third) and fire happens and we have a problem. From that point on we have plenty of everything and the only way to shut it down is knock a leg out of the triangle. In our case we stop adding more Oxygen since we're too busy coughing, getting dizzy, swearing, coughing some more, promising to never ever do that again and so on.
So I agree, while some guys that haven't might wonder if they did combust, few if any who do will question
something seriously different happened that hit than last.
OF