A scientific theory cannot be established as valid unless the consequences that follow from it correspond to reality.
Common Descent (CD) has been offered as a scientific theory and must therefore be judged as such.
The paper in Nature Communications reporting this research fits very well with my nonrandom evolutionary hypothesis.
Twenty years ago I wrote: “No random mutation has been observed that adds information to the genome.” That still stands.
The points raised by Boston University’s David E. Levin are the results of his misunderstandings or distortions of what I wrote.