We’ve seen Extreme Sports and even Extreme Ironing but now we have Extreme Email. Jonah Brucker-Cohen has come up with an idea to study how software, specifically email list software, affects human interaction.

BumpList only allows for a maximum amount of subscribers so that when a new person subscribes, the first person to subscribe is “bumped”, or unsubscribed from the list. Once subscribed, you can only be unsubscribed if someone else subscribes and “bumps” you off. BumpList actively encourages people to participate in the list process by requiring them to subscribe repeatedly if they are bumped off.

Subscribe and subscribe again or die!