What does "size of your inbox" mean? I have over 22K messages in my inbox, does that mean I am too busy? I don't use my inbox as a "to do list," so I really don

What does "size of your inbox" mean? I have over 22K messages in my inbox, does that mean I am too busy? I don't use my inbox as a "to do list," so I really don't care how many messages are in it. But, apparently, there are a lot of people who do. Regardless, I think it is totally cool you guys wrote an app that you think is useful and that you shared it with HN!