Tubular bind-off is a laborious yet elegant way to finish a ribbed edge. You divide the stitches onto two needles, the knits on one, the purls on another. When you join these two batches of stitches together with Kitchener stitch, the result is an edge that magically goes from front to back in an uninterrupted column of knit stitches.
You’re looking at k1, p1 just wantonly, irresponsibly left out in the plain air. One misplaced cat could have blown out the whole thing. I shudder. You want to get these knits and purls onto their two separate needles as fast as humanly possible.
Key to success: do your sewing with shorter lengths of yarn, wet-spliced together. This makes for a lot less pulling and breaking of yarn as you Kitchener.
When doing something tedious and potentially soul-sucking as, say, a line of Kitchener equivalent to 35 sock toes, an audiobook takes the edge right off. Not only did I get through the bind-off, I’m now deep in stanky, vivid Henry VIII intrigue.
The result, at the halfway point:
It’s going to be great when it matches the tubular cast-on at the neckline, someday.