The target market is presumably people who receive upwards of hundreds of emails a day, most of which are pretty short or could be short with no information los

The target market is presumably people who receive upwards of hundreds of emails a day, most of which are pretty short or could be short with no information loss. I don't get that much email, but I've heard coworkers complain about coming back from a short business trip to find 450 unread emails. I guess the idea would be to make this the default method of email, only resorting to classic email when you absolutely have to break the character limit. What scares me is what happens if you're having a back-and-forth email thread, and then it reaches a point where you simply cannot fit your next reply into the character limit? You'd be forced to completely disrupt the conversation to move it elsewhere.