John laughed. "Me? Mean? Really? But, everyone says I'm too nice!"
Huffing softly, he shrugged again. "Not entirely different agendas. I wouldn't say that. Different directions to approach the problem from in the first place. It was an idea that needed to be put out there. But, the reasons don't matter much, now, do they? They figured it out without needing to risk the information and here we are building the machine to prove it. For better or worse." Going to Hetty hadn't really been necessary seeing as Dom had already dismissed John's thoughts out of hand. But, it really wasn't worth digging all that up again almost two years later. "Yeah, let's just hope he does better with it than I did to get that understanding of what he's doing."
He raised an eyebrow? "I would never imply." He was stating outright. Thomas was okay. Margaret was okay. Doug was too distant from everyone to know for sure what way he'd go. The parents? Fuck no. "Three codes. Not a problem. I'm already including an authorization system for the maintenance and navigational protocols to prevent tampering. I can fork it for activation as well."
John's smile didn't quite reach his eyes. "Of course I've been learning since I got here. That's why I'm looking at contingency plans. Besides, there may not be anything for me to take over somewhere else. Others have stepped in where I should have been and things have changed. No way to tell until we get there. Which, reminds me, I've been thinking about it and I think it might be best if we save my world for last. Get everyone else home first. Then Derek and Brian and I can take the machine and destroy it in my world. There won't be any trace of it left in any world with the resources to replicate it. With J-Day already passed, it will take decades, if not a century, for there to be enough resources to replicate it, even if there's enough left of it to put together what it does after Derek blows it up."