Has this scientist finally found the fountain of youth?(technologyreview.com)

Has this scientist finally found the fountain of youth?

https://www.technologyreview.com/s/614074/scientist-fountain-of-youth-epigenome/

1 comments

"So potent was the rejuvenating treatment used on the mice that they either died after three or four days from cell malfunction or developed tumors that killed them later."

So yeah, pluses and minuses.