But key open questions remain before anyone can really say just how important this is.

1. Will it be reproducible by other labs?
2. Will it work in human cells?
3. Will it work in adult cells?
4. What are the molecular mechanisms?
5. Do these cells possess significant rates of mutations or epi-mutations, the latter being abnormalities in the epigenome?
6. Are these cells tumorigenic (besides forming teratoma)?

In particular, if the answer to one or more of the first 3 questions is no, then the impact could be significantly muted.