The machine's designers must not be able to explain how their original code led to this new program.
Whoa, whoa, whoa. I have severe problem with this. This is like looking at obscurity and declaring it a soul. The measure of intelligence is that we can't understand it? Intelligence through obfuscation? There should be no way for a designer to not be able to figure out why their machine produced what it did given enough debugging.
Nature Publishing Group claims the waivers are required to ensure the journal's ability to publish formal retractions and/or corrections. However, the story further notes that Nature Publishing Group is requiring authors at institutions with open-access policies to sign waivers that exempt their work from such policies."