We're trying to do infrared, which passes through tissue really well. We're trying to use that to take our bed of needles and make it a distributed group of lots of little nodes that can record. But people have looked at all kinds of things for this. Ultrasound, that's another way of getting power into the body. So but yeah, lots of items on that. You don't have too much power around each electrode. Do you not then run the risk of damaging cells? Well, and that's why you can't just power everything from the outside. You can always get power in there. The brain does not want more power. Things go very wrong if you deliver