Ashton Kutcher, during his ground breaking victory over CNN to reach 1 million followers – why is twitter 140 characters anyway?
Good question, we’ve all just come to accept that’s what it is but why?
Its pretty logical really. Twitter was designed originally to be able to have updates sent to your mobile phone as txt/sms messages. These are limited to 160 characters and you need a bit spare for saying who the message is from. So 140 characters for the message, 15 characters for the username, 1 character for the @ – and who knows what the other 4 are for.
