1. Explain the difference between forward chaining and backward chaining and describe when each is most appropriate.
2. What kind of mistakes might ES make and why? Why is it easier to correct mistakes in ES than in conventional computer programs?
3. Review the limitations of ES discussed in this chapter. From what you know, which of these limitations are the most likely to still be limitations in the year 2100? Why?
4. An ES for stock investment is developed and licensed for $1,000 per year. The system can help identify the most undervalued securities on the market and the best timing for buying and selling the securities. Will you order a copy as your investment advisor? Explain why or why not.
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