Its clear, closures actually solve the problem of random array access in high level languages. You are either after 1 value or all of them. These are 2 very eas

Its clear, closures actually solve the problem of random array access in high level languages. You are either after 1 value or all of them. These are 2 very easily optimized access patterns. Out of bounds array access isn't a constant threat. Edit: I consider loop based programming my most essential coding pattern.