"That which is accepted as knowledge today is sometimes discarded tomorrow." Consider some of the knowledge issues raised by this statement in two areas of knowledge.
In one of the most intriguing crimes scandals of Delhi is included the murder of a young girl named Arushi Talwar aged 13. On first note it was speculated that her servant, who absconded after the crime with the booty, had murdered her. Next day when the body of the servant was also discovered from the same building, the crime scene came to square one. The speculations failed and police started looking at the possible suspects. Soon it was declared that the accomplices were the friends of the servants, who in their greed killed him as well. The investigations came to a halt and the public was satisfied. As time passed there appeared some loopholes in the investigations, and the case was handed over to the CBI. The CBI officials investigated the crime scene forensically and claimed that the murderers were none other than the parents of the girl! Today we believe that the parents are the real culprits, but since the case is being fought in the Supreme Court, we must be ready to anticipate another breath taking judgment.
We try to acquire knowledge through the ways of knowing, and since the ways of knowing differ from person to person, gaining knowledge is becomes a difficult task. Knowledge starts with experience, observation and imagination, but the claim is doubted again and again from every angle until it is empirically tested. And yet it is the irony of human kind that what we know today is discarded tomorrow. One theory is replaced by the other, and on and on, and sometimes it becomes really hard to differentiate what is right and what is wrong. This human endeavor to gain correct knowledge gives rise to a knowledge issue: to what extent can I believe if the knowledge claim offered tomorrow will be discarded tomorrow or not? How do I know that the knowledge I have today is complete in itself? I want to explore the answers to these questions in the light of knowledge areas such as natural sciences and human sciences.