Unless you're the most complete full stack engineer ever, at some point you're going to be relying on a magic black box. The trick is to know what is acceptable

Unless you're the most complete full stack engineer ever, at some point you're going to be relying on a magic black box. The trick is to know what is acceptable as a black box or not. At this point in time, I'd say most memory management systems are pretty competent enough to warrant usage.