From Stratford Texas to Elkhart Kansas there is a path that will also visit
Texas, New Mexico, Oklahoma, Colorado, and Kansas, about 3 hours.<p>There is a path through Washington, Idaho, and Montana, about 70 miles and 1.5 hours.<p>New York to Maine path includes Connecticut, Massachusetts, and New Hampshire
takes about 5 hours.<p>Utah, Colorado, New Mexico, and Arizona all meet in a "corner".
There is a tourist marker that could be walked around in a few seconds.<p>Illinois, Arkansas, Kentucky, Tennessee, and Missouri takes about 2.5 hours.<p>So the optimization question is: What is the shortest set of paths that will
visit all 50 states in the minimum time?<p>If you have access to an AI that knows geography and roads this might
generate interesting metrics.