A common objection to creationism is an appeal to authority. Most scientists believe in evolution, so it must be true.
Problem is, scientific consensus can be unreliable. For instance, consider the recent JAMA study that acid reflex isn't actually cause by stomach acid backing up. If true, that falsifies 80 years of consensus. Consider the tens of thousands (hundreds of thousands?) of medical professionals who were giving patients the wrong explanation.
Another example is foods that were branded unhealthy for years, only to be rehabilitated. New FDA regulations created to mandate "safe" alternatives. New sin taxes. The food industry having to overhaul how food is cooked and processed, or what foods are even available, in what portions.
Or take the zealous promotion of "organic" or "unprocessed" foods.
This becomes dogma, followed by an overnight retraction. It would be good to maintain a running list of reversals.