Hopefully T I'd not forever. But if it is I'd venture to say that they're success series are based on high levels of habituation. To the point the ringing does not control their every moment. And distractions are easier to come by.
@MiaVIL You are correct and I most certainly spoke our of turn with very little information on them. I was projecting my opinion without all the information. I plan on reading more into these claims when time permits. And I apologize if I offended.
