Z:gnu-www-ja-google-engineering-talk--2570bc-If you don't have Freedom 1, y/en

If you don't have Freedom 1, you don't know what the program's doing. The developer is saying, "just trust me" and blind faith is the only way you can do it. And you have to be really blind, given that it's not unusual for proprietary programs to have malicious features, features that are put in not to serve the user, but rather to impose on, harm or restrict the user. For instance, spyware is quite common.