Authors Clayton and Craig steer clear of the high strategy. They note that it's unlikely a successful German air campaign would have lead to an invasion of the British Isles, for reasons noted here. (As if Rhine barges were going to get across the Channel in anything resembling an orderly fashion, but I digress.) Was a Stuka as good as an SBD at bombing ships? But the SBD was most effective against aircraft carriers. On the other hand, had Britain sued for a separate peace, how many more fire hoses would be forthcoming from the United States?
(Cross-posted to Cold Spring Shops.)