Patsy's doctors in Charlevoix and Boulder came to the conclusions that she was suffering from spinal problems and possible pregnancy in 1992 and early 1993, but that did not make them correct. For that matter, her oncologist in Atlanta came to the conclusion that he had removed all of her cancer when he performed her hysterectomy, and he turned out wrong, since he missed a golfball-sized tumor present at the time.
What does this teach us? People who come to conclusions can and are wrong, and Carnes is no different.
If you want to believe her, though, then you have to concede that the Ramseys were lying through their teeth about the night of December 25th, because Carnes states unambiguously that Burke fell asleep in the car after the family left the Whites, and therefore he would have been in no shape to enthusiastically put together some complicated parking garage model with tiny decals for half an hour, as John Ramsey said happened.
Which do you throw your lot in with? Carnes knows the truth, and John Ramsey lied, or Carnes did not know all the truth, and got things wrong, which puts all of what she said at risk for credibility issues?