🧣Algebraic and Differential Properties of Vector Fields (AD-VF)

The study of movement through space highlights a fundamental shift from the static "snapshot" of vector algebra to the dynamic "process" of differential geometry. While the cross product acts as a geometric constraint identifying a path of radial expansion perpendicular to two rotations at a single point in time, the Lie Bracket functions as a differential operator that measures how these movements interact and change as one moves through space. This interaction reveals that rotational flows fail to commute, meaning that following one movement after another in sequence leaves a physical "gap" or displacement rather than returning to the starting position. Ultimately, while the cross product simply identifies a direction in 3D Euclidean space, the Lie Bracket maps to the structure of rotation groups, demonstrating that the combined "drift" of two rotations generates a brand-new rotational flow around a third axis rather than an outward push.