What is the opposite theory of "Rule of Three"?

so basically "Rule of Three" is a theory where in a huge mature market, there basically three huge strong competitors.

examples are:

In the philippines, the most 2 dominating fast food are Jollibee and McDonalds(i leave the last one to you)

In the gaming industry, though there are too many from money making i know it would be EA, Ubisoft, and Blizzard

​

So what is the opposite theory of "rule of three"? where the market is small and there is a huge gap to explore, create, experiment and take advantage of. I'm doing this because in my Game Development Thesis, my Statement of the problem is that there is a small market in "Medical Educational video games" while compared to the mainstream genre's of video games such as FPS, Adventure, Hack & Slash, and stealth. is small.

Any help would be nice. Also is there a theory that talks about something that is not yet created?

​

Edit: fixed some typos and also English is not my first language

Submitted October 17, 2019 at 10:56AM by TheLastApplePie https://ift.tt/2OX0rMO