A dagger that feels like a second skin, no weight, no noise, that cuts in the blink of an eye – that’s the edge. In VR I can map the exact mass distribution, the balance point, the feel of each slide, so the hand knows exactly where to place pressure. I keep the blade thin, use a carbon‑fiber core wrapped in a low‑friction polymer, so it slides through a target silently. I test angles, reach, and retraction in virtual drills, so when the real thing arrives I don’t have to think about it, just act. That’s how you turn a quiet tool into a lethal advantage.