The speed reading training is based on certain characteristics of the human brain and eyes, together with our memory, which can be optimised and taken advantage of by anybody who wishes this. There are 5 valid scientific arguments that show us how fast reading is accessible to anyone. You can read bellow a brief description of this 5 arguments.
1. The path for processing the meaning of written information is different to the path for processing visual features (e.g. shape, colour etc.). The path for processing the meaning of information is dominant, which means that we automatically allocate the most psychical resources to it when we read. We are basically more interested in understanding what we are reading, and less in the way the letters look. Our brain is designed to favour mainly the understanding of the text and only subsequently the graphic aspects.