Back in the day, I made a short animation (available here) to help explain the model in presentations. It is pretty simple, but it effectively communicates the idea that the occurrence of multiple Late Paleoindian point types in northern Indiana is not solely the result of a unilineal sequence of technological change. I was hoping to add a soundtrack to the animation before I put in on YouTube, but technological evolution let me down: the software I used to edit the video no longer opens the video it created. So please hum a Donny and Marie song while you watch it. I suggest this one. Or maybe this one.
After collecting and analyzing more data during my dissertation work, I now think that some of things in this paper are wrong (see the description). The paper served its intended purpose, however: a model that can be used to derive further expectations is a useful one. The process of creating an explanation like the one in this paper forces you to try to construct scenarios that are consistent with all the information you have. And it encourages you to think about how additional information could be used to discriminate between scenarios. And that is useful.