And even the 1000 lines only work if there never is another developer touching the code. I can easily hold my own invariants in my head at that size, but if any

And even the 1000 lines only work if there never is another developer touching the code. I can easily hold my own invariants in my head at that size, but if anyone else also contributes, there will be unknown invariants that I will miss. Smart pointers are, besides other advantages, also a great communication tool. That said, I prefer Haskell or Rust in that regard :)