After I reading the article and watching the video, I think affordance is an attribute,and it identified on the basis of various characteristics; it also links the cognitive psychology.
So this week blog question is：
“what are the affordances of a contemporary smartphone?”
A smartphone (or smart phone ) is a mobile phone with more advanced computing capability and connectivity than basic feature phones .（wikipedia）
calendar;phone;E-book;E-mail;entertainment（game/video）;camera;some of the social relationship(social medias app);