Ha! I had worse, when I was a student (in '90s) I was taught some crazy stuff - OSI model but without a single word about the OSI protocols (like X.224) but wit

Ha! I had worse, when I was a student (in '90s) I was taught some crazy stuff - OSI model but without a single word about the OSI protocols (like X.224) but with TCP/IP pulled over instead. So I was unironically taught that e.g. TCP is a layer 4 on the OSI model and HTTP is layer 7, etc. As if the model was still alive and relevant somehow.