 Coercion: The prospect of coercion is raised in several ways. Obviously, if the state decides to mandate an enhancement, treating its beneficial effects as a public health issue, this is effectively coercion. We see this currently in the backlash against vaccinations: they are mandated with the aim of promoting public health, but in some minds the mandate raises concerns about individual liberty. I would submit that the vaccination case demonstrates that at least on some occasions coercion is justified. The question is whether coercion could be justifiable for enhancement, rather than for harm prevention. Although some coercive ideas, such as the suggestion that we put Prozac or other enhancers in the water supply, are unlikely to be taken seriously as a policy issue (however, see Appel 2010 [2011]), less blatant forms of coercion are more realistic. For example, if people immersed in tomorrow’s competitive environment are in the company of others who are reaping the benefits from cognitive enhancement, they may feel compelled to make use of the same techniques just to remain competitive, even though they would rather not use enhancements. The danger is that respecting the autonomy of some may put pressure on the autonomy of others.