Two or three things that we (intend to) know about Hopfield and Tank networks

This work aims at reviewing some of the main issues that are under research in the field of Hopfield networks. In particular, the feasibility of the Hopfield network as a practical optimization method is addressed. Together with the current results, the main directions that de- serve ongoing analysis are shown. Besides, some suggestions are provided in order to identify lines that are at an impasse point, where there is no evidence that further research will be fruitful, or topics that nowadays can just be considered as historically interesting.