"Things You Wouldn't Know If We Didn't Blog Intermittently."
I liked the history between 1:22 and 2:40.I am incapable of signing consistently. It's a notable cultural difference between my generation (b. 1977) and that of my parents (b.1950-2). On the other hand, I know that many blind people who cannot securely use a PIN rely on signatures for security, an aspect not touched on in the video.