14.5 Outlook 315 Annotation Tools Currently, the semantic
316 The Semantic Web The Network of Meanings in the Network of Documents will become part of a future knowledge universe, because machines link the content to related contents in calculable connections. When this will be possible is speculative in that it requires the understanding of languages, and additionally the ability (of machines!) to imagine (rather, calculate) possible worlds. AI research set itself these goals about fifty years ago, and has not achieved them to this day. At the same time, however, AI has made important contributions to IT as we know it today. Databases and search engines use many of the principles formulated by AI researchers during recent decades. So, a renaissance of the great challenges could give important impulses for future technologies, though the most ambitious goals will probably be hard to reach during the next fifty years, too. However, we also have to bear in mind that the enormous computer powers of current systems enable solutions to move into the feasible range. Though these solutions do not try to imitate human thinking, they can achieve very remarkable performances in other ways (often by brute-force evaluation).
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