Why bots won’t replace apps anytime soon

It's a venturebeat repost of http://dangrover.com/blog/2016/04/20/bots-wont-replace-apps....

Previous discussion: https://news.ycombinator.com/item?id=11557166

> Apps like MailTime even promise to save us from our emails by turning them into chats.

I've been wondering why this wasn't done sooner.