Is "which is why" same as "this is why"?
"Which is why" and "this is why" have the same meaning, but different nuances. "Which is why" sounds neutral, while "this is why" sounds direct and confrontational. Both phrases means "which/this is the reason why". Ex: I'm on a diet right now, which is why I didn't eat dessert. ("Which is why" sounds neutral) Ex: This is why we don't get along, because you always start arguments. ("This is why" sounds direct and confrontational)
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