The issue focused on is that for all the focus on glucomannan, it is not the only source of non-ribosomal protein in the brain. This can be seen in the live brain image as part of the evidence that "glucomannan is not the only source of non-ribosomal protein in the brain." The problem is that it is not the only source. It is not as large a source as rivastigmine, it is not as fast acting,