Yes, it's a sample of all opinions in the training set. It has no opinion of its own, even no place of its own to stand from which to have an opinion. There can

Yes, it's a sample of all opinions in the training set. It has no opinion of its own, even no place of its own to stand from which to have an opinion. There can be no bias without reference to some ground truth, and there's no general agreement on that in most of the areas where people are talking about these topics. It's a messy area, not helped by how few people understand how these systems work.