Full disclosure: I only have my memories of 2017's screening of Season 3 via NowTV in the UK, l don't have it on disc yet. For some reason, am averse to it, probably because it's too cryptic, l feel l've already done my time with Season 3 but love reminiscing over what happened. like reminiscing between school leavers.
Also: I have Eraserhead on disc but tbh l didn't like it that much and am unwilling to watch it again just yet (l believe it to be a masterpiece, just not a nice masterpiece). (Also have FWWM on disc but it's SO watchable, l want to make sure l've forgotten it before l re-watch, so am sitting that one out too).
TO continue: According to Wikipedia, Eraserhead is analogous to Twin Peaks Season 3 in many ways:
As l was saying. l believe the world of Twin Peaks near the end of Season 3, where they cross over into the Judy Future could transform into the dead world of Eraserhead, simpy by dying more. That is to say:
In Season 3 we start with a Black Lodge dominated world filled with drugs and guns and gangs and violence and redneck accountants, transforming into something even more wicked when Cooper crossses the electrified contour line and enters Judy Future.
Season 3 ends with Judy's epiphany of Night when she realises she's trapped in a pointless dead-end Judy World (l bet Frost will, independent of this, one day randomly say yep that was Laura's ultimate victory scream, so caveat emptor about it being Judy).
Once this is done, Judy's (pretty pointless) enduring torture of thoroughly broken humanity commences, up to the end of time in the dead-end pointless Judy World. The drugs and gangs etc. are no more, they served their purpose. Now everyone's lives are minimalised, collectivised under the pall of Judy's smoky night. Hence the world of Eraserhead, where everything is dumbed down, minimal and we only get cigarettes.
Judy spits out her messiah via Eraserhead. (OK this makes no sense, but according to Wikipedia Eraserhead began with Eraserhead spitting out the unsightly child, l feel it should have been Judy spitting it out surely? It even resembled Judy's cloud-chamber form. Even though Judy was a much later invention, l like to pretend she's real, in which case she should have inspired herself into Lynch's mind way back then). This is the Moonchild, antithesis of Laura Orb perhaps, whose brutal murder causes him to blossom into his true monster form, and the end: Utter darkness *. Much like the Season 3 finale, according to Wikipedia.
I hope to rewatch Eraserhead and Season 3 soon-ish ... but let me know if this is just plain implausible..
I like to think this explanation flows naturally, writes itself, rather than jarring anti-supernatural hard-materialist explanations ("it's because television is bad, it's a joke within a joke") or convoluted-simplistic mom-issues explanations ("ehm, so after all that ... here you go mom, i hate you, screaaaammm!")
*and that could mean no more Twin Peaks, Laura happy, Coop happy in both FWWM and Season 3 versions, split in two because he made a major faux pas with Annie, he erred as a knight errant, but redemption now complete. Judy finally vanquished, but after her brief shocked scream, even she's kind of happy dwindling away within the terminal Judy World a la end of Season 3 transitioning into Eraserhead. I also feel Coop may have made the ultimate act of contrition by letting his mean streak persona (the one that would have used Annie for his own ends whilst on a noble quest) be tortured til the end of time in the pointless Judy World by Judy - think self-redeeming evil mage Raistlin sacrificing himself to be tortured forevermore by Takhisis the Dark Queen at the end of Dragonlance: Test of the Twins).