The ENT episodes "Affliction" and "Divergence" exist to explain why the Klingons of The Original Series look and act human, and sows the seeds for the Klingons eventual return to bumpy-headed status in the TOS movie era and beyond, with talk of cranial reconstruction surgery and eventually finding a cure. It was a fun two-parter, and I remember totally geeking out when the NX-01 was boarded by TOS-style Klingons. Enter Star Trek: Discovery which CBS insist fits perfectly into the Prime Universe (ENT, TOS, TNG, DS9, VOY) of Trek. Set 10 years before TOS, it has re-reimagined Klingons which look more alien than ever before and not once do we see a human-looking Klingon Augment, even when we see representatives of all 24 Klingon houses. One of the key plotlines of season one is Voq, a Klingon who undergoes horrific organ-swapping, bone-grinding, memory-implanting surgery to pass off as the human Ash Tyler - which is impossibly stupid if they could have just injected him with the Augment Virus and had his ridges dissolve in a few hours. It's doubly confusing, since DSC directly references events of ENT, including "Broken Bow" (referencing Archer's visit to Kronos) and the USS Defiant from "In a Mirror, Darkly". The only plausible conclusion is that those episodes happened, but "Affliction"/"Divergence" didn't. Personally, I've been ignoring CBS's claim that it's the same world as the rest of Trek since day one and see Discovery as it's own thing, where events similar to previous Treks occurred but a little differently. And one of those differences is that "Affliction" and "Divergence" never happened. What say fans of Enterprise?