The important point is that there are massive delays between these steps: 1. Your brain wants to move a muscle 2. The muscle moves 3. The effect of

The important point is that there are massive delays between these steps: 1. Your brain wants to move a muscle 2. The muscle moves 3. The effect of the move is processed by your brain And still you think stuff happens instantly and you can hit a beat etc. Our brain just adapts to the latency and removes it from our perception. It it thus not a big deal if you add a little bit of latency between step two and three. As long as that latency is constant, our brain just adapts. This is of course only true if there are no reference points with lower latency. E.g. if you drag an item across a smartphone, we notice tiny latencies, because our finger moves before the icon – something we can easily see.