WE did not need the Spanish philosopher George Santayana to remind us that those who forget their past are doomed to repeat it. Indeed, we could have avoided the ongoing confusion over President Duterte’s draft constitution for an inverted “Federal Republic of the Philippines” had we been a little more attentive to the lessons of the 1970s under President Ferdinand Marcos. With sufficient foresight, we could have learned something worthwhile from his highly controversial constitutional “experiment.”