Something that I came across the other day really put people's opinion of the world and everything into context. I had been searching for something, and came across a forum thread from 2010.
Everyone on that thread was convinced that the end of the world was months or years away (Keep in mind this was just after the 2008 fiscal crisis and this was an economic related forum)...
They all were talking about these facts and posting statistics and everything that "proved" these certain countries were on the brink of failure..
Those events did not come to pass.
That's when I realized pretty much everyone is entirely full of shit, and ultimately life itself is your own attitude towards things.
Negativity and opinion are psychological virii.