That's a very interesting question I would love to read more about if someone has good material related to it. My intuition is that no data set can take into a

That's a very interesting question I would love to read more about if someone has good material related to it. My intuition is that no data set can take into account all aspects of humanity and therefore cannot be bias free. However, I believe that exhaustive data sets have a great potential of being less biased that human beings.