"The overwhelming majority of religious minded people in general, and that of Muslims in particular, holds the following view. At the moment of Creation, Allah Almighty laid down the rules, which were to govern the operation of the Universe. He also decided the chronology, the timing and the manner of each and every event that was to take place till eternity (the end of the Universe). He also decided the actions and behavior of each and every individual product of His creation non-living matter, the living beings and of course Men. As the popular statement in Urdu says : ‘Not even a leaf stirs without His permission.' Many hold the belief that God alone has the authority to allocate Rizq (sustenance): that is why we see so much disparity in the distribution of wealth. Some believe that one's pre destiny can be changed through extensive prayers, good deeds and exalted intermediaries like saints. It is all a matter of pleasing God either by individual action / pleas or influencing His decisions through someone.
Many also believe that only the major events in one's life are pre determined (such as marriage and education) but not the minor steps leading to a particular major event. That, they say, is the demarcating line between Man's freedom of choice and his pre decided destiny. It is believed that each and every individual is subtly taken through life being driven Willy Nilly to one's destiny by the invisible hand of Fate. This view raises a number of intriguing questionns."
Does this mean that all our choices have been pre decided? So if some girl gets raped does it mean that Islam believes that it was already decided by god? What about the external physical aspects that influences our lives? If we get cheated or betrayed was it because we were meant to be or because of actions of other devious people? Or is it that the bad actions of others are justified because God knew about it in the first place?
Obviously logically this cannot be what it means by Taqdeer. As in the article in the link above, the author tries to to logically translate it to a more broad thinking modern populace. Whatever meaning the different scholars agree on, fundamentalists would not hesitate to take the verbal meaning straight from the Quran and warp it to their own liking, just as they have done to every other teaching of Islam.He has created everything in a particular proportion and has determined the measures for its capabilities and potentialities.