I think "genius" today as a term is closely linked with achievement rather than intellect.
Now im in the school of thought who think genius can only come from some genes and hence some humans, but not all humans born with these genes and background will actually fall into the "genius" category.
This is where environment and personal drive seperates them apart.
Certainly not all humans have the potential to be a genius, thats just lying to protect egos.
I think genius is a broken word of late, we still hold it with some respect, but its thrown about too often and we havent learnt to happily define it again. We have moved away from thinking that only Einstein, Shakspeare and kids who complete uni at 19 are geniuses, but havent decided how far the term can go.
Is Micheal Jordan a genius in basketball for his ability to read the game ?
Genius i think, can come in many different areas, often to the ill of other parts of the individual (in fact this is often needed as we see by Autism where they have extrodinary ability in some areas often maths/music. But the task of getting the milk is too complex)
We all have the potential to improve ourselves, often to levels we never thought possible, however throwing around the term "genius" for 130 IQ's or your favourate music band is a assault on the word. But since words are never constant, and only as valid as we hold them then maybe this is the way its going.
Everyone likes to think themselves a genius, or a genius to be at some point (including this poster) but its not true. Genius is a sperate level of intellect, thats recognised through achievement. Maybe thats the great test rather than IQ.
I think we should stop looking at children via IQ tests and then pushing them around, demanding more, whilst looking at the elderly always with a glowing halo.
How about we look at those at the end of their life, see how worthwile they made their lives, what they achieved (and yes raising a healthy family is a true achievemnt) and then we may start to see what intelligence and intellect is all about.
When we stop looking through the world though these false prisoms often dictated by age and status we shall some day start recognising the truely worthwile and how best to achieve such aims in all individuals.