Thanks everyone. Tigerle, I think you've nailed it. Truly, I think this is the only/best option we have. I tried it yesterday when the topic came up again, and it nearly went sideways, but worked in the end. I said scientists were working on it, she wanted to know how soon they'd be finished because she didn't want to get older than 9. Then she wanted to know how they were going to do it. I mentioned making clones but that freaked her out, and so did talking about brain mapping/AI, cryogenics, etc., so then eventually I just made up some nonsense about telomeres that sounded sciencey and she was happy with that. Phew! I hope it works for a few years. Fingers crossed!