Especially at the best frequencies for hypnosis. And since I would not be able to control for epilepsy-proneness at all times and whenever the sound was being used, I had to assume it was always a possibility, therefore anything that might create a problem had to be eliminated. The theorizing, technical production and testing went on for a couple of years and was beginning to look like a lost cause. But just when things were looking bleakest I came up with a rhythmic sound that worked, and with a little tweaking it worked for just about everyone. Not evenly and equally for everyone, of course.
Nothing is that universal except gravity.
But, as we say in science, the effects were normally distributed across the population. It is effective enough to work at surprisingly low volumes. The rhythm is a passive aid in that it masks all except the strongest of external noises. It is an active aid in that it helps generate a hypnosis-compatible brain wave frequency without triggering the sort of bifurcation resonance typical of seizures. Click here for ordering information , or here to order.