#borrow Clear
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Rust Move vs Borrow — the Core Rule
Rust's ownership model: passing a value transfers ownership (move); taking a `&value` lets you read without taking ownership; `&mut value` lets you modify without taking ownership. Only one mutable borrow OR many immutable borrows at a time.
Rust Slice Pattern: Borrow Without Copy
A slice (`&[T]`) is a borrowed view into a contiguous sequence. Pass `&v[..]` or just `&v` instead of `v.clone()` when the function only needs to read.