Sometimes I wonder if I am at a disadvantage because I don't smoke! It would be nice to be able to call on the clear and lucid feeling when I sit down to work or need to think something through.
Or another analogy. It's like having a really bad headache, taking some aspirin, and getting a 'clear and lucid' head after it takes effect. Wouldn't it be better just not to have the headache in the first place?
Cigarettes are obviously bad and a stupid thing to do, but there are people (including myself) who genuinely enjoy them, we aren't just addicted and using them to get back to level zero.