Slip slidin' away, on two feet

[BktBallRef]

Originally posted by assignmentmaker
Perhaps such sliding is the topological equivalent of jumping up in the air and landing . . . you moved them both, so one of them - just which is moot - must have been the pivot foot.

Exactly.

4-43-1
A player who catches the ball with both feet on the floor, may pivot, using either foot.

Since a player can only move one foot when neither has been established as a pivot, it's traveling to move both.