If we had to know how or why everything works before we would try something, we would not have or participate in half of what we do. We trust in medical procedures and drugs we know nothing about. We accept that cars, computers, cameras--even clothing--work or are better than another similar product, so we buy and use these things without asking much.
The idea here, on this forum, is to trust the experiences of other like-minded folks rather than demanding an explanation from the product's founder, who wishes to become established after years of work and personal investment before his technology is hijacked by competitors.
We believers are so happy with PPT's products, we don't mind knowing little of how they work to improve our systems, but work they do!