The season 2 episode is about how it got moved up in the timeline with a pointless in-cannon explanation, I was okay with it being hand waved like the klingon ridges before they fucked that up too. I’m kinda sick if Khan and the eugenics wars being a well they keep going back to in newer trek in general, his out of universe fame has seeped into the universe. The Darth Vader effect
The season 2 episode is about how it got moved up in the timeline with a pointless in-cannon explanation, I was okay with it being hand waved like the klingon ridges before they fucked that up too. I’m kinda sick if Khan and the eugenics wars being a well they keep going back to in newer trek in general, his out of universe fame has seeped into the universe. The Darth Vader effect
I agree that lots of things that have production explanations don’t need in-universe explanations.