AI researchers had failed to appreciate the difficulty of the problems they faced.

AI researchers had begun to run into several fundamental limits that could not be overcome in the 1970s.

These critiques were not taken seriously by AI researchers, often because they seemed so far off the point.

AI researchers began to develop and use sophisticated mathematical tools more than they ever had in the past.

By the 1990s, AI researchers had gained a reputation for making promises they could not keep.

There have been many AI researchers that debate over the idea whether machines should be created with emotions.

On the other hand, most AI researchers believe that software is more important than hardware.

Some AI researchers, for example, are building due-process principles into their computer programs.

This is the question that AI researchers are most interested in answering.

AI researchers were able to simulate the step by step problem solving skills of people with computer programs.