Negative Space Is a Decision, Not an Accident
Early drafts of a logo often treat negative space as leftover — whatever shape happens to form around the parts the designer actually drew. But viewers read the empty areas of a mark just as actively as the filled ones, especially at a glance, which is how most logos are actually seen in the real world.
Marks that use negative space deliberately — a hidden arrow, a secondary letterform, a clean gap that reads as intentional rather than accidental — tend to feel more resolved and more memorable than marks with the same silhouette but unconsidered gaps.
A quick check during the sketching phase: invert the mark, look at the white shapes instead of the black ones, and ask whether those shapes feel deliberate. If they look like arbitrary leftovers, the mark likely needs another pass.