Why should a thesis statement be significant, debatable, and limited?

A thesis must present something worth writing about. If the topic has been written about a million times before, is it necessarily significant? A thesis must also be debatable. Thesis statements are not facts. If there is no opposing viewpoint to your thesis statement, then it isn’t a thesis statement. Another important element that must be considered with thesis statements is if they are limited enough for the purpose. Whether or not a thesis is limited is determined by the scope of the project. A particular thesis might be inappropriate for a five-page paper but completely appropriate for a 50-page paper. “Limited” must be determined on a case-by-case basis.