While this approach can provide new dimensions for data interpretation, it is still in its infancy and even the most basic questions in this field are still largely unanswered: what kinds of patterns can be extracted from trajectories and which methods and algorithms should be applied to extract them? It is important that investigators be aware of these at the start of the analysis. It is also important to note that many of these still don’t have a single solidified answer or solution, as identified through the literature.