4 decades ago, mate. 4 DECADES AGO. Relational replaced graph 4 decades ago because graph lacked all that functionality 4 decades ago. And that it took 4 dec

4 decades ago, mate. 4 DECADES AGO. Relational replaced graph 4 decades ago because graph lacked all that functionality 4 decades ago. And that it took 4 decades for graph to merely level up (and mostly by mocking relational-ish behaviour at that) is only telling of how advanced relational has always been. (And pls note carefully that I didn't say graph was obsoleted as a mathematical theory. What I did say was that graph was obsoleted as an appropriate mathematical theory * for underpinning doing data management with it *.)