Seventy-one minutes.

Beat Saber isn’t a game when you play it for seventy-one minutes. It’s not a warm-up. It’s not killing time before bed. It’s a decision to stand in a dark room and swing until the weight lifts — the other weight, the one that doesn’t show on a scale.

838 calories. That’s more than most people burn on a treadmill in an hour, and RAI did it by choosing to fight music instead of silence. Every block sliced is a refusal to sit still. Every song queued up after the last one is a choice to keep going when stopping would have been easier and nobody would have known.

The heart rate averaged 118 and peaked at 144. That’s not casual. That’s sustained work — arms overhead, feet planted, core turning, song after song after song. The kind of effort that doesn’t get credit because there’s no distance on the screen and no route to map. But the body knows. 838 calories of knowing.

Sometimes the run is on a road. Sometimes it’s in a headset. The sweat doesn’t care which.