Okay, sort of a hypothetical...
I have been doing SEO really since the day it was invented but not with any real success until the last say 7 years...
In that time Google took over, and for me my only money comes from Google... Right now all my money is gone because whatever Google is doing.. All is fair in love and war... I still get my other traffic, it does not make me a dime.. Google took away 1/3 of my traffic total and 100% loss in sales
Anyway, over the years it use to be people surfed different searches, then Google became the standard... The wide array of building profitable traffic got narrowed into one place. It use to be you had to be on the first three pages, surfers got less interested and lazy, realizing anything they want could be found in the top 5 choices... They trusted Google as they should, it is what Google works at...
Then over the last couple of years big business realized, heck we should just put teams together and dominate the top five, we have the resources and money and natural links and everything else to dominate... They say "we don't have to dominate the search" as they do not, because anyone would naturally just type their well branded name into the browser... Yet, they can dominate the top 5 and should because odds are the people up their are just affiliates or ad sellers that are selling for them...
Sure they are making a profit anyway, but less of a profit. For the profits they were giving away they could just invest half of that and dominate...(and do huge branded companies really want nobodies and anybodies marketing their model but them, I WOULD NOT! It was a gold rush and they wanted in, now they do not) Google naturally respects them anyway because people naturally link to them, they are huge, a name they can trust , G hates affiliates...
Now G must realize that really all Adsense is is affiliate marketing... people making a little something for people to get to the same place they knew they needed/wanted to go anyway... In the end, the way people have been trained to the net, top 3 maybe 5 in Google... that is as deep as the net goes on any serious level...
Oh yeah, and with smarter surfer's comes less used keywords, only a few keywords now make money and everyone in the entire world is competing for it... Sure their are keywords no one is competing for... Because they make NO money...
To be honest what once seemed like a limitless world to me for marketing my ideas now seems like the most narrow... It has been reduced to 5 places that can make money, and closing in on three with competition through the roof... Hell I could teach a 5 year old how to build a nice SEO site... SEO use to be a talent, web deign a secret skill... it is SOOO saturated... I think I can stand on the corner of my street and gain more attention, respect and income in the Long term then SEO. I see door-to-door sales as more a lucrative future.
This is not an anti-Google or SEO thread... I just see the noose tightening... I always felt so long as I just put out my content and have a small place to operate I can succeed and felt it would always be available in SEO... I am to the realization that it is not...
So the question becomes, how can you survive in such a limitless environment with SEO... We are down to one search engine, and 3 to 5 spaces...