Inbox by Gmail, in my opinion, was the best way to manage emails and was years, if not decades, ahead of its time. However, we are all aware of how things turned out. Google decided to phase out the service in favor of the original Gmail client, promising to carry over some of the smarts but never fully delivering on that promise. Many other services have attempted to fill the void since then, but none have succeeded. Another is now taking a stab at the assignment, and it appears to be the most promising yet: shortwave.