If the evolutionary process is to bring its benefits, it has to be allowed to operate effectively. This means that incompetent societies have to be allowed to go to the wall. This is something we in advanced societies do not at present face up to and the reason for this, according to Cattell, is that we have become too soft-hearted. For instance, the foreign aid which we give to the under-developed world is a mistake, akin to keeping going incompetent species like the dinosaurs which are not fit for the competitive struggle for existence. What is called for here is not genocide, the killing off of the populations of incompetent cultures. But we do need to think realistically in terms of "phasing out" of such peoples. If the world is to evolve more better humans, then obviously someone has to make way for them otherwise we shall all be overcrowded. After all, ninety-eight per cent of the of the species known to zoologists are extinct. Evolutionary progress means the extinction of the less competent. To think otherwise is mere sentimentality.