The creators of Google Inbox explain why it’s the future of Gmail

Gmail was so successful that it ended up redefining what we expect from a web email service. Inbox clearly wants to do so again, but it’ll only work if it really addresses the email issues of 2014. Today the problem isn’t spam per se, but quickly identifying the best, most relevant messages and pushing the rest to the background. And once we’ve done that, making the actions you need to take on those messages as efficient as possible.