@daniel of course sandboxes improve #security. It is important to remember that sandboxes by definition are sets of restrictions. If a sandbox only restricts things you don't use, you win. Sandbox restrictions often break features that users want. Since I'm focused on #UserFreedom and #FreeSoftware, I want community control over which restrictions are in place. #Android does not provide that unless you have the skills to hack and make your own ROM, even then its hard. #Debian does provide that.