It may be rational to be bad, aggressive and impulsive".
"It might be rational to only consider a flat fee or free shipping".
So it can be "rational" to join in a bubble from their point of view.
Of course, it may be rational to worry that a grand fiscal bargain isn't much of a bargain at all.
Evidence from experimental psychology suggests that people have difficulty resisting the impulse for instant gratification, even when they agree (at any time other than the exact moment of temptation) that it would be rational to resist.
If service industries currently employing $10 per hour workers are forced to choose between $15 an hour non-union workers, $13 an hour union workers, or a bunch of robots that presently cost, say, $18 an hour to operate, it might be rational to pony up for the machines.
Philosophers sometimes ask whether it could ever be rational to trust other people.
But almost all subjectivists allow that it can sometimes be rational to change one's prior probability assignments.
For example, it is often suggested that it could not possibly be rational to accept a contradiction.
Thus someone who accepts such conditionals would be rational to infer the consequent upon coming to accept the antecedent.
One thing we don't think is that it would never be rational to believe any report of a Yeti.
