Such a model which ignores the liquidity premium, when compared to subsequent history, seems to have a bias towards overstating inflation.

FORBES: What Is the Liquidity Premium? What Does It Mean?

"He didn't have a collecting bias towards larger fossils, " explained Mr Williams.

BBC: Museum of Somerset marine insect fossil study starts

Concerns have been expressed that there could be a bias within ethnic groups towards selecting boy children, for cultural reasons.

BBC: Many parents 'would choose baby's sex'

What he and other critics may have missed is that a big part of the new bias in the News Feed is towards posts that contain large photos and videos.

FORBES: Will Facebook Use Lookalikes To Remake Your News Feed Today?