This interface specifies that an implementing type is a recipient of
PointerEvents and is thus conceptually something, "to which one can point." Note that
IPointableElement is (as an
IPointable) both an originator of and a consumer of
PointerEvents; this manifests the common
Interaction SDK pattern that
PointerEvents are created by the instrument which does the pointing, are received by the target to which one points, and are then forwarded by that target to additional consumers.