I'm in the High Energy Lab on Ember Twins, and I just read that the Nomai researchers confirmed their hypothesis about time travel - namely, that an object exists the white hole a split second before it enters the black hole. One of them then poses whether a delay of 22 minutes would be possible (here's where I had to pause and take a breath). They speculate that it would it's theoretically possible but would require energy on a new scale.
I have my own theories as to what that last bit implies, but I won't post them here because I don't want to risk spoiling myself in the ensuing convo. So glad I'm savoring this. =)
Ah yeah, that was definitely one of those moments! By the way I would avoid reading this topic until you've finished, but you probably already know that