blind alleys is hard. How do you know a path is blind without going into it?
If you are a true explorer, you cannot trust another explorer's word that a
certain way is blocked - maybe there is a way through that you will see. The
most important thing is to go into interesting paths and explore them. It is
important to be able to identify a path as a dead end (for you) and then to
WALK OUT again. People usually just hang around and get stuck with lots of
bad ideas in their heads. One example is to think that one's model is reality.