Is there an explanation somewhere of the technical details of how he did it?
https://media.defcon.org/DEF%20CON%2025/DEF%20CON%2025%20pre...
Super unfortunate wording. I spent a second wondering how you could encode that much precision in two 'bits'.
This seems like a good case for open source; and pay bounties for anything untoward. I really am curious what the code looks like for this.