The point is:
1) The person has no proof of their words. How will they prove that their promise isn't a lie? Will they point to a random passerby and that person will die?
2) If a person possesses such abilities, how can you know that they won't kill you if you have the idea of choosing a "third option"?
3) How can you know that the person isn't a higher being, testing people?
4) How can you be sure that killing this person will go unpunished? How can you be sure that you'll be able to pocket their money (they might transfer it to a bank account)?
4. There's no such certainty. However, there's also no certainty that I will act exactly like that, but the probability exists. Simply "because I want to."
Знание некоторых закономерностей освобождает от изучения многих фактов.
Мечты сбываются рано или поздно, так или иначе.