Why call somebody on the phone when you can write them a letter?
> the true value of social media is as a channel for advertising?
That's probably too narrow. The value for me would be as a channel of communication.
> the true value of social media is as a channel for advertising?
That's probably too narrow. The value for me would be as a channel of communication.
What reality are you living in that Twitter is slower than email?
Since you have directed this in an uncivil course: In what reality do you live where "email is to twitter as postal mail is to telephone" is a true statement?
Less technical people will record a video, choose the share action to post it online, then all the people that are following will see it in their feed.