> but you won’t be able to refactor logic-related parts “without a thought” on memory layout, even ownership, etc This is sort of true, in that I might take r

> but you won’t be able to refactor logic-related parts “without a thought” on memory layout, even ownership, etc This is sort of true, in that I might take reference where I used to take a value, or vice versa, but it's pretty trivial. It's extremely rare for borrow checking or memory layout to slow me down at all when refactoring.