[escherplex]

Point number two above is well taken. Also there's more 'stretching' at the higher end. For example you may find a couple of individuals who can do complex del functions on a variety of topics in their head and somehow seem 'inspired' whereas others specialize on one arcane topic and spend countless weeks feeding research data into matlab or Wolfram apps while scouring onscreen .pdf tech archives for suitable algorithms they can adapt. But at this stage of the game functional genomics is in its infancy (you can't yet feed a genome's UCAG sequence into your 3D printer and expect it objectify a true object). For fuller understanding of implicit nature / nurture parameters concerning intelligence it may be more practical to select and isolate a suitably large sample from the center of the general population, where (dy/dx) = -yx is relatively flat, and insert such into a distraction-free positive artificial environment which focuses primarily on intellectual development and includes cognitive enhancement medical supplements such as nootropics or whatnot to varying degrees. Results may suggest high-intelligence is more latent than suspected, especially if sub bell curve distributions manifest.