Talk:Princess Celestia/@comment-43854483-20200108082915/@comment-44073254-20200109180520

https://www.equestriadaily.com/2019/10/big-jims-q-on-friendship-is-magic.html

It was stated by Jim Miller that they gave Twilight their powers over the sun and moon, or at least that was the intention when they fused the crowns. It was also stated that Twilight will not outlive her friends, I've made it my headcanon that the power over the sun and moon is how Celestia and Luna lived so long. I don't think it has to do with being an alicorn, as Cadence aged normally. So I think by the epilogue they are gone, also it seems a bit strange for them to go to a retirement home if they are still going to live forever or at least a long time.