@peterbourgon to avoid edit wars, I invite you to have discussions here.

Many people use the term "benign race condition", including in literature.

The benign race condition I referred to in the checklist would be like this:

var m sync.Map

func foo(k string) string {
	v, ok := m.Load(k)
	if !ok {
		v = compute(k)
		m.Store(k, v)
	}
	return v.(string)
}

Assuming compute() is safe for concurrent calling and idempotent.