NosyNed writes:
It might need a little more detail of how the testee goes about changing things. It isn't clear that you don't know which questions you get right or wrong.
Hm. What if the analogy wasn't about a test?
If you're with a tour group in Africa, and there are a bunch of tribesmen with spears, ready to stab anyone who does something wrong, and you have no idea what IS wrong, well, some people will just die and others will just live. You wouldn't know what happened, or even that there was a test. You were just doing what you do naturally. Like, hiccupping.