How do you know that?
How do you know that?
You seem extremely confident you can actually do this. I'm...really, really not. There really are some things that just can't be done by a single person, or even a handful of people, no matter how heroic they become. The only way they could do that is if they had the powers of gods, which...isn't going to happen in my games. Hence why I asked what I did; you seem to be of the idea that the players have infinite time, infinite resources, infinite re-tries. They don't.
Again: You are literally saying that the only way for someone to suffer a true setback is to be Killed Off For Real. Why? Why is it removing death means you can ALWAYS have infinite re-tries? You can't. I won't let you, not at my table. Rationality doesn't permit it. I'll support any genuine interests my players have, but "I get to keep trying forever, so I always succeed eventually" isn't a genuine interest. It's very clearly degenerate.