Final answer:
Authors include expert insights to add credibility, background information, and to aid in analysis. These elements underpin an informed discussion and reflect the thoroughness and reliability of the author's argument.
Step-by-step explanation:
When authors include insights from experts such as Tim Tinker, they often do so to provide credibility to their work, showcase background information and context, or offer a groundwork for further analysis and evaluation. In the context provided, an author such as Trumbore might refer to Tim Tinker or his approach to indirectly establish the author's own credibility, or to illustrate a method for self-evaluation and speculation. By presenting Tinker's involvement and stance within his community and his research efforts, Trumbore likely aims to inspire trust in the reader and to suggest that the questions raised by Tinker are a significant and reliable way of approaching problems, thus setting the stage for an informed discussion or reflection within the essay.
Analytical and evaluative content such as this can serve multiple purposes: It can provide a counterpoint to the main argument, bolster a claim with academic support, or guide the reader to new lines of inquiry through rhetorical questioning. Additionally, by mentioning how a writer synthesizes information or describes efforts to make research accessible, Trumbore might be emphasizing the importance of diverse perspectives and comprehensive study in addressing complex issues.