All you have to do is use context to encode messages, and you have unbreakable encryption. This will also make you (and your social network) far more intelligent. This message is an example. It is impossible to derive this message’s content by any mechanical technique because only the single person it is addressed to will correctly understand the context and thus be able to derive the appropriate meaning. To anyone else? It appears to be a helpful suggestion about privacy online. It’s actually that simple to defeat billions of dollars of investment in surveillance technology. Any idiot can do it. I just did.