@grumpy dry vaping is where you put plant matter (some dry vapes can do other stuff too) in a heating chamber and passes hot air through it
works well and is healthier than other methods
also the thing about vapes is that you can do them back to back with little short term consequence, but if you did that with cigarettes you'd be sick for hours
so you have a whole generation getting hooked to nic vaping, taking insane doses constantly - how are they gonna quit? nicotine causes cancer in any form