People get stuck in a filter bubble based on their friends and their interests. The one-sided content validates and entrenches their opinions and values. Part of the filter is the source of the content, as distribution methods can vary by groups. A lot of conservatives may get their information from forwarded emails and radio talk shows, while liberals receive DailyKos action newsletters and watch mainstream media. Occasionally you find yourself conversing with someone from a different bubble (thanks to a shared interest like cigars), and you cannot fathom why someone would have differing opinions. You feel like they'd be idiots to ignore the massive amount of "evidence" that has been provided to you, not realizing that you've only been provided a portion of the information available, which is a different portion than what they've been provided.
Edit: I just wanted to add that this wasn't necessarily directed at victor- just musings brought on by that comment.
z6joker9 wrote: