Minority Report (film) Spielberg also offered the role of Witwer to Javier Bardem, who turned it down. After "E.T.", Spielberg started to consult experts, and put more scientific research into his science fiction films. In 1999, he invited fifteen experts convened by Peter Schwartz and Stewart Brand to a hotel in Santa Monica for a three-day "think tank". He wanted to consult with the group to create a plausible "future reality" for the year 2054 as opposed to a more traditional "science fiction" setting. Dubbed the "think tank summit", the experts included architect Peter Calthorpe, author Douglas Coupland, urbanist and journalist Joel Garreau,
Directed set Directed set In mathematics, a directed set (or a directed preorder or a filtered set) is a nonempty set "A" together with a reflexive and transitive binary relation ≤ (that is, a preorder), with the additional property that every pair of elements has an upper bound. In other words, for any "a" and "b" in "A" there must exist "c" in "A" with "a" ≤ "c" and "b" ≤ "c". The notion defined above is sometimes called an upward directed set. A downward directed set is defined analogously, meaning when every pair of elements is bounded below. Some authors (and