AiG creationist thinkers at least have adopted almost a form of Critical Realism in regards to the past. Nothing can be absolutely proven in relation to the distant past before human presence in the region. Therefore whatever theory you make about the past is not independent of your presuppositions. This is how I have basically explained it, and earlier I criticized it on the grounds that it was an attempt on the part of the creationists to avoid the obvious evidence for evolution. Either way their position appears to have been mishandled by several people such as AiGbusted. It has been interpreted as saying we cannot trust our own thoughts because thoughts. The misunderstanding probably stems from this quote form the AiG article, "Is nature the 67th book of the bible?":
"Many who trust in humans as the highest authority reject the Curse as true history and thus deny its effect on our observations. Some point to the effects of the Curse as proof of “bad design.” For Christians, however, it is foolish to ignore the Curse when considering what nature can “reveal” to us. After all, this would be like someone trusting a funhouse mirror to show them how they really looked. They look into the mirror and see a distorted view but assume that this mirror must be “right.”"Now at first glance this does seem to say that we cannot trust our senses and this does seem to contradict what creationist have claimed about evolution being anti-science and anti-knowledge since it means our brain is just an assortment of chemicals which evolved over billions of years and can't be trusted. Is this a contradiction made by the author? No, creationists such as Ken Ham say that there is a distinction between what they call "operational" science and "historical" science. Operational science is everyday repeatable science which has been used to build technology and send humans to the moon. Historical Science on the other hand has to do with the distant past and origins which are affected by our presuppositions and is therefore not science in the same sense that operational science is. Furthermore in regards of repeatable, testable, and operational science the senses are very reliable and they believe that science requires "biblical presuppositions". loved and hated Creationist astrophysicist Dr. Jason Lisle explains:
"he biblical creationist expects there to be order in the universe because God made all things (John 1:3) and has imposed order on the universe. Since the Bible teaches that God upholds all things by His power (Hebrews 1:3), the creationist expects that the universe would function in a logical, orderly, law-like fashion. Furthermore, God is consistent and omnipresent. Thus, the creationist expects that all regions of the universe will obey the same laws, even in regions where the physical conditions are quite different. The entire field of astronomy requires this important biblical principle."However they say science in relation to the distant past before the existence of humans or at least before written records and such cannot be proven and if any theory is not based of biblical presuppositions it is flawed because it does not take the bible (what they believe to be the foundation of science) into account. Also the fall is used to explain things like mutations, disease, and some instances of bad design so if you follow their logic nature gives a distorted portrayal of God and thus while it is useful (they believe that historical science can work if interpreted through biblical assumptions) it should not be put at the same level as the bible. That is all they are saying, they are not saying thoughts are unreliable.
If one is to respond to creationist claims he must do it with an accurate portrayal of creationist beliefs not a distorted view and that is the purpose of this article, it is not to endorse young earth creationism in any way. It is to correct flawed arguments in the same way AiGers have done already.