The blue butterfly is a commenter in the live broadcast who provides historical and scientific context about alien zergs. They mention that when alien zergs appeared before, science couldn't explain why they mutated, so people blamed it on some intelligent creatures in a higher dimension. They note with humor that people have been professionally taking the blame for a hundred years, adding 23333 to their comment. Their remark reflects a skeptical and humorous perspective on the supernatural explanations for zerg mutations.
