10 points for using the term "availability cascade". However, I wouldn't be too worried about Twitter. I do not see it having the significance to the nature of

10 points for using the term "availability cascade". However, I wouldn't be too worried about Twitter. I do not see it having the significance to the nature of conversation that the author presumes. It's just another option, of easy to use but short format broadcast messaging, and I am sure that people will adjust their expectations in the fullness of time. It's really early days yet.