Last week, Dr. Mehmet Oz stopped by the Oprah Winfrey Show to talk with Winfrey and special guest Michael J. Fox, who suffers from Parkinson’s disease, about stem cell research that may soon lead to cures for diseases like the one afflicting Fox. 

At one point during the segment, Oz seemed to stun both Winfrey and Fox by asserting that ”the stem cell debate is dead.” Since embryonic stem cells are hard to control and can even lead to cancer, Oz said adult stem cells hold the most promise. Further, Oz said he believes researchers are within 10 years of making major breakthroughs using adult stem cells.

You can check out the whole segment here, or catch the abbreviated analysis below: