This is a creationist alternative to natural selection, posited by Randy Guliuzza and promoted by the Institute for Creation Research. It has been accepted by some creationists and rejected by others, including Answers in Genesis.
Institute for Creation Research Goes all-in on Denying the Reality of Natural Selection
Post by Joel Duff on his Naturalis Historia blog.
Refuting Dubious Claims Regarding Natural Selection
Article by creationist Jason Lisle. This is a creationist article and may contain inaccuracies or distortions but it is of interest to see a creationist view of the CET hypothesis.
Does Natural Selection Exist?: A Critique of Randy Guliuzza’s Claims
Article by Nathaniel T. Jeanson. This is a creationist article and may contain inaccuracies or distortions but it is of interest to see a creationist view of the CET hypothesis.