Yeah! I have found that writing rust as I write scheme (with some limits, of course) usually means code runs fast without having to even think about the borrow

Yeah! I have found that writing rust as I write scheme (with some limits, of course) usually means code runs fast without having to even think about the borrow checker. Sometimes iterators aren't enough though, and if I had reliable sibling recursion in debug mode, most of my use of loop would disappear.