Y'know, in retrospect, the fact that he draws his characters with relatively detailed hairdos and clothing but with exceptionally simple and inexpressive faces - the exact opposite of the way a normal human being splits their attention - should have been a really big clue that Greg was autistic. His "transition," of course, leaves no doubts.
It's not that. It's just that the hair and backgrounds are something he only really needed to draw
once. (Well, a few more times during his transition, but we'll get to that.) Each character has but one hair sprite, which he doesn't even change to match the lighting conditions. Notice how the long strand that comes past his ear often hangs a few degrees from the vertical when he tilts his head.
Faces would require a lot more work however. You can of course make the argument that comic readers prefer a more simply drawn face because of the uncanny valley and you think reading Scott McCloud makes you an expert in comics. That may be true some of the time, but Greg's faces are so simple, even by comic book standards. The real reason here is much more obvious: pure laziness.
In order to do the bare minimum to convince people his characters aren't lifeless cardboard cutouts, he realised he at least had to move the faces from one panel to the next. Conveying the subtleties of a facial expression every time he did this makes it even more difficult. But since Greg Dean can't draw (something he realised back in '99 when he started "drawing" people in
this exact style, sans the colours and shading), this meant it would be too difficult to do 8 different faces for a single-page conversation between two people.
So he made six small shapes in Adobe Illustrator (ah, who am I kidding? He probably used Inkscape), and has been using the same 3/4 profile face ever since.
(Notice how the mouth moves subtly between all of these)
Only three of which need to be moved in order to change a facial expression, and sometimes just one. Notice how the eyebrows aren't even there except for in panels where he needs to look puzzled, surprised, or frustrated.
Tim B^Uckley has got
nothing on this.
Meanwhile, the hair.
It looks like Greg's been trying to make the change happen gradually, and this was his best attempt.
"Relatively detailed" is pushing it just a bit.
There are six hair sprites
total that he's drawn for the character. And when the time was right, one of them would be swapped out for another.
Usually this would line up with a scene change, which at least implied the passage of time. But for the last one, it looks like he gave up on continuity and made it happen in the middle of a scene where he's trying on dresses with Liz:
January 15th's comic, and
the next comic after it.
Also, the iPhone prop on his desk hadn't been updated since the iPhone 4. Still there in 2020, but it seems to have been gotten rid of in the most recent desk shots.