Comment by tomcatfish

It turns out that both phrases are used like this, similarly to how they teach in logic classes that "but" is just "and" in fancy clothing, but actual usage is quite different. Actually, a lot of language is just signpost phrasing that "helps the medicine go down" by giving hints at how the following idea will connect to this one.

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Both phrases are used like this— let me explain:

Logic classes teach that "but" is just "and" in fancy clothing, and actual usage is quite different. A lot of language is signpost phrasing that "helps the medicine go down" by giving hints at how the following idea will connect to this one.