The speaker says preventing rivals from stealing work was another reason people favored secrecy in AGI development.

“and burn down their lead time over everybody else and spend that lead on making it safe and then proceed and so if you're like publishing all your research then there's less lead time because your competitors are going to be close behind you um so and other reasons too but that's like one reason why i think historically people such as myself have been like pro pro secrecy even another reason of course is obviously don't want rivals to be stealing your stuff um”