There are many reasons. Failing at extrapolating exponentials. Uncertain thresholds for how much compute and data each individual task requires. Moravec's parad

There are many reasons. Failing at extrapolating exponentials. Uncertain thresholds for how much compute and data each individual task requires. Moravec's paradox, and relatedly people expecting formalizable/scientific problems to be solved first before arts. There are still some non-materialists. And a fairly basic reason: Not following the developments in the field.