"The overwhelming thing we've discovered is that rumble is such a rudimentary form of haptic feedback," he said. "It's not like a little rumble in your palm is your whole way of interacting with the world – it's not like, oh, I stubbed my toe and I get a little rumble in my palm." The audiovisual presentation of Kinect games, he said, does more to immerse people than rumble, as evidenced by the instinctive reactions he observed from players. "In many of the games we have, people will crash a vehicle and they'll go totally like this [mimes dodging out of the way]! And even people playing games with a controller, there's always people doing this [mimes driving motion]."
Tsunoda went on to sort of address the nagging question of lag. "The way we measure 'lag' is by putting people in front of the experience and measuring their thoughts. Either it feels good or it feels sloppy. It's not how many milliseconds, it's: 'Does it feel good? Does it react fast? Does it feel as if you're in control?'" So what is important isn't the amount of lag, but the perception of lag.