To actually explain an outcome, you must only be able to make-up-a-plausible-sounding-explanation-for that outcome, and not make-up-a-plausible-sounding-explanation-for zillions of other possible outcomes. Evolution does this, successfully, for millions of species, which is good.
The more actual outcomes a scientific theory explains, the better; the more potential outcomes it could have explained just as plausibly, the worse.
To actually explain an outcome, you must only be able to make-up-a-plausible-sounding-explanation-for that outcome, and not make-up-a-plausible-sounding-explanation-for zillions of other possible outcomes. Evolution does this, successfully, for millions of species, which is good.
The more actual outcomes a scientific theory explains, the better; the more potential outcomes it could have explained just as plausibly, the worse.
Sorry if this wasn’t clear.