[itsgabriel]

I don't think this analogy works, the space laser is instant and does not spread to non-targets. Smoking does reduce the average life span, but not to zero. In the remaining time, healthcare costs are increased on top of anything expensive they'd develop naturally. Smoking also causes serious diseases in non-smokers and kills 1.3 million non-smokers per year. https://www.who.int/news-room/fact-sheets/detail/tobacco