> As an information theorist, I used to be able to point to optical disks as an application of my field, and be like "see all that math is useful for something,

> As an information theorist, I used to be able to point to optical disks as an application of my field, and be like "see all that math is useful for something," but now I don't have anything shiny to point to anymore QR codes, dude. ;)