  For others this problem would be avoided by ensuring that the technologies are available to everyone, at least for traits that offer significant advantages (Buchanan 2011). Traits that only offer positional advantages – being taller than, perhaps faster than – would then be self-defeating (Buchanan et al. 2000) if available to all, and the allure might fade. Other traits – perhaps enhanced concentration, memory, or immunity – might be advantageous regardless of how many people have them. Providing funding to improve accessibility would then be necessary in order to ensure fairness.