I have an opinion about nicotine too. I have smoked cigarettes, menthol Camels, chewed Copenhagen, smoked cigars etc. I still smoke cigars when I want to. Cigarettes are addictive, but not as a result of bioactive nicotine. If that were the case, tobacco would cause the same response, and it doesn’t. I think the use of tobacco started as a result of its effectiveness at preventing the transmission of mucosa dependent viral respiratory illness. I don’t know what big tobacco has done to add addictiveness to tobacco products, maybe ask the soda companies, but I assure you, it isn’t tobacco or nicotine itself.