The negative health impact of smoking tobacco is so massive that it's pretty hard for anything to top it. Could vaping be worse than smoking cigarettes over a 4

The negative health impact of smoking tobacco is so massive that it's pretty hard for anything to top it. Could vaping be worse than smoking cigarettes over a 40-year period? Maybe. But it seems unlikely because tobacco is so clearly harmful, and so much of that harm we know comes from combustion.