I associate "thinking outside the box" with "not swallowing everything we read". So, I have no problems with thinking outside the box. Einstein was the perfect example of someone thinking outside the box. In a major way.
However, there are limits. Science has rules, and those rules exclude, in the most categorical terms, the presence of non naturalistic explanations. This rule is so important that it is the equivalent of a rule in the game of chess.
Does that rule suffice to find all truths that are in our range of inquiry? This is debatable. I think they do, because I go beyond methodological naturalism. I am a metaphysical naturalist. But that's me.
But for sure, nobody can accuse scientists for not accepting a spiritual or supernatural reality in their work. It would be like accusing a chess player for not using the rules of poker, Monopoly, or any other game, while she is playing chess.
Ciao
- viole