That's just it though, that's where the whole minefeild thing comes into play. In mindfeild you click on these random boxes and if u hit the wrong one a million other boxes explode that were connected to it. Let's say I was scared of fire because i toucehd the stove one time as a child, but it left me really scared and I couldn't cook anymore. Let's say they became super geniuses and said lets erase this memory. I'm gonna forget what I learned about it. What if I forget not to touch fire? What if I forget what fire even looks like? What if I forget how to work a stove? Fear teaches us shit and its a subconsious alert tool thats meant to watch your back because you don't have eyes everywhere. I think it was Mark twain that said "it is not absense of fear, but mastery of it that makes us brave" or some other really cool person.