For a long time there was no measure to quantify knowledge. But today the unit of measurement for knowledge is taken as chunk. Each chunk has a unitary representation in the human memory. For example, P, A, M are three chunks and MAP is one chunk, because the word MAP is stored as one unit in the human memory. Similarly, each if … then rule used in an expert system is one chunk. Present expert systems are capable of handling about 10,000 chunks of knowledge. And if you take the chess masters have about 50,000 chunks of knowledge. Any human expert will have about 70,000 chunks of knowledge. What is the impact of this magic number 70,000? If we build expert systems of 70,000 chunks, we can keep them on the Internet and anyone can access this to become expert faster. The knowledge servers can accelerate the human learning process process.

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