Are Filter Bubbles a real thing?

[Pergamos]

Some people seem to think they are not.

http://www.intotheminds.com/blog/en/recommendation-algorithms-the-myth-of-filter-bubbles-at-stake/

[Cramulus]

Not a position I'd considered! -- I mean, filter bubbles exist, that's not debatable, I think the question is to what degree they actually influence us?

I'd like to read some of those papers.