When someone in the first minute of a debate says: "That's a nice idea, but it simply cannot be done." Is this a fallacy? If so, which one?
I think it probably is a fallacy because we should first discuss whether something is desirable and then we can brainstorm about how to get to the desired result. So the debate is in a way hijacked.
But I can't really figure out which fallacy is involved. Perhaps it has something to do with these fallacies?
- Jumping to conclusions
- Shifting burden of proof
But I am not entirely sure! Any input is appreciated.