Re: Sigh. Is this still somehow news ? - SPOT ON
Lack of intelligence - manifest in recalcitrant error and stupidity - is often bleedin' obvious: the obverse, other than by exclusion of characteristics defining the opposite, is much less so.
Human intelligence is deemed quantifiable, at least so on a ranking scale converted to an interval scale (i.e. 'scores'). However, "the cash value" (William James' version of 'utility') of overall scores rests upon their indicative worth in classifying human behaviour and in predicting propensity for certain 'levels of achievement'. The presentation of sub-scores, or recombinations thereof following 'principal component' or 'factor analysis', may offer insight for psychologists, but doesn't appear helpful to the AI discussion.
The only 'intelligence' for which humans have direct experience of its existence is that which they attribute to their own kind and to other forms of animal life. Intelligence, despite being loose of definition, should be regarded as an attribute factoring to varying degrees in the multiplicity of biological evolutionary pathways which we observe in retrospect. It is one of many deciding factors on an individual's (within an interbreeding population i.e. a species) capacity to produce offspring, and in sufficient numbers, to have good prospect of themselves reproducing; other major things include opportunities/limitations implicit to their environment such as the availability of food, the risk of predation, other physical hazards, and the pace of change among the balance of opportunities. Bear in mind, production of viable offspring, and their success, is the only factor driving evolution.
Intelligence is bound up with capacities to anticipate and avoid dangers, and responses to opportunities for advancement (e.g. regarding feeding, reproduction, and nurturing offspring). At the most basic level, single celled organisms usually have 'built in' means to withdraw from chemically hostile environments and/or to move towards favourable environments (e.g. algal organisms moving into brighter daylight). That no more constitutes 'intelligence' than, for instance, a mammal reflexly withdrawing a limb when it contacts something that induces pain.
Only when, by aid of sensory input, an organism 'computes' and takes choices, which on average, promote survival and reproductive capacity, is rudimentary intelligence invoked; from which may be inferred that 'intelligence' is not an all or nothing characteristic (or an emergent feature). Moreover, contrary to naive belief, evolution is not an upward progression towards greater complexity or some anticipated pinnacle. If an evolved attribute ceases to offer advantage, it may regress, e.g. some fish species inhabiting water in dark caves have lost apparatus for sight, and there is a 'legless' lizard, colloquially known as a 'slow worm', which, by virtue of changes in its environment, converged upon snake-like anatomy. Ditto for 'intelligence': if no longer advantageous (to whatever degree), it ceases to be a selected-for characteristic.
Consider the position of a species possessing practical intelligence, one well adapted to its environment, and via a degree of communal organisation (common enough as with wolf packs, chimpanzees, and humans), need no more rely on so-called 'tooth and claw' for a moment-by-moment existence. Cognition is no longer on full-time alert, directed towards the external world. The underlying process, which may be likened to a pain-and-pleasure motivated loop of mental activity, has, so to speak, free time on its hands. Apart from periods of sleep, there is a void to fill. Domestic felines have opted to extend sleep-time considerably. Humans, appear to have derived pleasure from haphazard and playful thoughts. These tie in with so-called 'creativity'. Idle-time speculation can 'visit' fragments of memories; patterns may emerge. Pleasure can be derived from successfully discerning and extending the reach of patterns. In other words, whatever is meant by intelligence outside the context of immediate personal survival has to do with motivation for gratification. Internally defined motivation is not as yet simulated by AIs. Perhaps, it cannot be unless AI software is educated (not 'trained') by means parallelling the way by which children experience their world.