I Don't Remember Getting Older, When Did They?

The producers of "Girl Meets World" posted this picture, the "Boy Meets World" cast then (1996) and now, 17 years later.

First thing that jumps out is that Mr. Turner is not there. He's not dead. He's just not relevant to this spinoff and probably wasn't willing to be in the picture and go home without getting paid. Other things I noticed: Topanga looks great. Shawn and Eric look like brothers. Feeny looks very old. Amy hasn't aged a bit. What the fuck is on Alan's head? It looks like he took Turner's mullet and bleached it then slapped it on his head.