“Since Carol Danvers hasn’t appeared in any other Marvel film thus far, it’s likely that she isn’t even on Earth; how else could you reasonably explain why she hasn’t intervened in previous world-ending scenarios. Has she been frozen in a S.H.I.E.L.D. storage facitility only to be brought out in the worst situation as the ultimate plan B? Probably not, otherwise Nick Fury would likely have revived her during The Avengers or Age of Ultron. No, the chances are that signal was broadcast into space, where she’s fighting off an alien threat like Skrulls, the Kree... or both.”