Weird. I get the sense that from the perspective of the author of the question, he's taking the specifics too literally; sort of the opposite of how people try to weasel out of introspection when confronted with things like the trolley problem ("I'd pull the lever, AND shout as loud as I could to try to warn the guy", etc.).

To me, the idea is not to be worried about things like accidental use of the power, whether or not you know/believe that you have the power, etc. Assume that you have the power, you are aware that you have it, and that there is no risk of accidentally triggering it. Would you use it?

I can say with near certainty that I would have used it when I was younger; faced with situations like the experience he had with the bully when he was 13. I might have given it up after a single use, when firsthand confronted with the reality of it. Or I might easily have descended into the depths of utter evil, and eventually started using it casually, for offenses real or imagined.

If I got the power NOW, I think it is fairly likely that I would never use it. I'd be strongly tempted, though.

There is no need to imagine such a situation, this is already the reality. In america all police have this ability and on average a citizen dies every day.

First thought,

If you find the question interesting, watch the Death Note anime(not the movie), this is more the less the premise of the entire series with a teenage genius gaining said power.

I have to say I find video presenter's approach to the question is interesting. He almost only addresses the crime of passion angle. The more difficult moral question IMO is as MilkmanDan alludes with the trolley problem. If you have essentially a superpower like this, it is not ONLY your use of it that is a dilemma, but also a refusal to use that power to help victims when you could.

Go back 10 years ago, what is morally worse, using your power to kill Osama Bin Laden, or to refuse to use your power when you could end his influence?

Moving this video to Mordhaus's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.