The pattern is Christine Dumoulin's Binary scarf, knit up with Cascade 220 sport yarn. When finished, this project had consumed about 740 meters of yarn, which Ravelry helpfully tells me is the largest knitting project I have ever made. It certainly felt like it as its bulk increased; the final unblocked length was 76 in/ 1.9m. This scarf is longer than I am tall. Luckily, it is for my younger brother, who is markedly taller than me.
I am proud of how this scarf turned out, and thrilled I didn't get bored with it. The initial cast-on was followed by a long hiatus, but the entire scarf was knit in just over a month after restarting.
This completes my long stint of knitting scarves for my immediate family, a project which has taken most of the last year. After I block the tilting ribs cowl and this guy, I will label and send the last of these projects to new homes. Meanwhile, I am feeling the strong urge to go cast on a sweater for myself.