"No. I can make it so he never died. There's a difference." I said.
"What's the difference?" He said scratching his head.
"If I brought him back to life now, he would likely appear here, alive, after being dead and missing for many years. You would still remember him being dead and missing," I said. "If I made it so he never died, all of the experiences you have had without him could either be erased, or worse, overlapped by new memories of him being alive."
"That does sound problematic," he said, holding his chin. "Would you be able to bring him back to life? In the first way you described?"
"Not that I know of. Not yet. If I do gain that ability, I'll let you know," I said.
"I assume you can't take it back if something goes wrong?" He said.
"I'm fairly certain I can't," I said.
[That is correct. There are no take backs]