What makes social media attractive? Evan Williams’s prediction is definitely right. Social media appeal to human’s baser need, which is the desire to socially connect with each other.  Social networks as technical solution offer the possibility of globally social interaction. Respectively, the state of interaction between individuals in social media is actually a continuation of the offline social interaction into a digital world. From technical tools, Twitter has somehow fulfilled this baser need of human’s social interaction- shown by its huge number of users. However, I have to disagree with one of William’s comment.  Well I think, Twitter won’t need the five extra years to get its tool used by broader public.