Link: gapingvoid: crowded markets.
Basically, when 20,000 people have the same biz model as you, you are dead meat.
There is a school of investing, called Contrarian Investing, whose premise is, "If taxi drivers are giving stick tips, it is time to get out of the market." In other words do the opposite of what the crowd is doing and you will likely do better then the crowd.
The same applies to job hunting. Everyone sends in resumes but no one really reads them because there are so many.
This applies to every industry.
If you are in the middle of a herd surrounded on all sides changing direction is hard, but out on the edge of the herd it is easy. While there are advantages and disadvantages to every situation, I tend to believe that greater freedom is a stronger advantage then greater security, and too often that security is only an illusion.