  Any evaluation of whether Actual State reasons internalism is simpler, more elegant, or explanatorily more powerful than any possible externalist view will have to turn on an evaluation of this kind of externalist explanatory strategy. If internal reasons could be simply derivative from external reasons, and external reasons could be independently explained, then Actual State reasons internalism will have very little traction on these grounds. If the derivation of internal reasons from external reasons turns out to be unsuccessful, however, or external reasons themselves are difficult to explain, then Actual State reasons internalism will gain traction as an explanatory hypothesis. Schroeder (2007b) attacks the derivation of internal reasons from external reasons; here we can go on to consider whether external reasons are themselves harder to explain than internal ones.