This is exactly why I respect NBA refs more than most fans do. They're sprinting backwards while tracking world-class athletes moving at full speed, making split-second decisions on travels that even we miss in slow motion replays.⁣ ⁣ The key insight here: refs won't call a travel unless they're absolutely certain. If there's any doubt about foot placement or timing, they let it go. And honestly, that's how it should be.⁣ ⁣ Otherwise we'd have whistles every other possession and the game would be unwatchable. The human element and that certainty threshold is what keeps the flow intact.