> that it is up to the user to bend backwards and make their brains work as a compiler What do you mean? You always have to track lifetimes and what outlives w

> that it is up to the user to bend backwards and make their brains work as a compiler What do you mean? You always have to track lifetimes and what outlives what (i.e. work of a compiler). Especially in C++. Not doing that results in UB. In Rust you have a compiler double checking you. And it errs on side of caution. And no, errors aren't horrible, they come with suggestions for fixing them.