I think it has. In the past, you had to have some kind of qualification to even let other people know your views. TV shows wouldn't bring you onto their program and newspapers wouldn't publish your articles unless you had demonstrated some level of competency in regards to the subject matter being discussed. Now, any moron can go online and present an opinion and it can be very difficult for most to distinguish between the informed opinions of experts and the bullshit some moron pulled out of his ass.
That combines with the expansion in the number of potential media sources to get one's information from which, rather than providing a broader diversity of views, simply creates an echo chamber effect since most people tend to read the articles and opinions of those whom they already agree with and don't even become exposed to conflicting points of view, so a lot less thought is needed on any given subject as a result.
So more people spread their 'thoughts' more widely. Probably not. For most one's thoughts are directed at those for which one has affinity. All that's really happened is we now see people like to here what they think repeated a lot. Yes its mostly inane, stupid, ill informed stuff. You know, kind of like that little echo chamber we walk around in called our friends. But there you go. More evidence of what wisdom exists in everyday life, very little.
I really don't know the number of repeaters has anything to do with information density or quality. Still, as 'on the street' comedy bits illustrate there isn't very much quality there anyway. So why would density impact knowledge or any other worth while aspect of information?
We were in the dark about whether Reagan was going to get demolished by Carter right up to about two weeks before the election. Boom. 48 or 49 states went Reagan. What followed was a 600 ship fleet, a bunch of aircraft, Reaganomics, lots of added debt, and down came that wall which was evident as far back as 1968.
So other than, shudder, another conservative justice, what is going to be so bad about Trump-onomics, debunking the Iraq war, a more or less secular presidency, resolving the southern border problem, a minor revolution in the middle class and taxes all toward more equity, the death of the Republican party as we know it today and a shift left in 2020?
The paints are already on the pallet. More brown, fewer republicans, younger electorate, more education, a rebuilt infrastructure to fix the middle class and less government ownership of lands in the west. Shudder, shudder, shudder.