Description from Knitty.com:

Binary is a flattened stockinette tube. As such, it has no visible stranding and is extra warm. Although it looks complex, the fair-isle pattern is broken up into small pieces that require minimal chart reading.

The scarf is essentially made up of lots and lots of digits strung together. It's much simpler to think of the digit (rather than an entire row) as a single unit of the pattern. It's a good idea to swatch this out beforehand to get a feel for the digits and spacing.