True, but the power of QR codes lies in the ability to embed large amounts of contextual information that's not directly related to remembering it. Consider an

True, but the power of QR codes lies in the ability to embed large amounts of contextual information that's not directly related to remembering it. Consider an ad campaign in a large city that puts up advertisements on bus stops. A savvy marketing department could put QR codes on each advertisement which direct the user to a webpage, but also include metadata about where that particular ad was posted. Additionally, it's very popular among marketers because of the interaction QR codes drive. Generally, the process of interacting with a QR code (especially with a link to a website) opens the site automatically in my browser. That's one immediate impression. Since I'm on the go, I'm likely to lock my phone without bothering to close the tab. When I open Safari back up, boom. There's another impression. Whereas if I wrote the website down, there's much less of a chance that I'd bother to go through the process of opening it later (copying address into a browser.) On the consumer side, if I see an ad I'm interested in, it's almost trivial to take a picture of it rather than "tap it in or write it down". One hand, a few taps, and I have both accessed it and saved it for later.