If they can find a way to tweak genes to force the brain to have more glial cells, the type of cells that support neuron functions, or enhance the glial perform

If they can find a way to tweak genes to force the brain to have more glial cells, the type of cells that support neuron functions, or enhance the glial performance, they can eventually make people sustain high mental performance for longer periods of time. One of the findings after analyzing Einstein's brain was that he had a higher ratio of glias to neurons.