It's worth remembering that at the time it wasn't "blogging 140 characters at a time" it was "SMS blogging" which is a much easier idea to pitch in that the use

It's worth remembering that at the time it wasn't "blogging 140 characters at a time" it was "SMS blogging" which is a much easier idea to pitch in that the use case is more obvious (being on the go) and the character limit isn't arbitrary.