> I would argue though that if you modify your preferences frequently, you are indeed an irrational person. E.g. buying a pack of cigarettes and always regretting it later.
Would you say that someone who is constantly struggling with their body fitness versus what they would like the level to be be is irrational?
If you have a long-term goal of body-fitness but eat fast food each day then your long term goals are fluctuating wildly. Another possible description of this behaviour is high time-preference, which means your goals are more short-term rather than long-term.
Maybe there is a better word for this behaviour than irrationality?
We also are treading into difficult areas such as free will etc.
Would you say that someone who is constantly struggling with their body fitness versus what they would like the level to be be is irrational?