Is perfection possible? there is no comparison to perfection, or rather, a target to which one must achieve to have lived a life of perfection, thus, although you may believe you are making the best choice in each scenario, you may have a lack of knowledge etc to take other factors into account which may have given the scenario a more preferable outcome, but again, every being is completely different when it comes to the many experiences they are built of and their logic and so everyone's perfect would also be different contradicting perfection.