Eventually, in 2006, the IAU settled on a three-part definition: a planet orbits the sun, is sufficiently massive to form itself into a round shape by gravity and has “cleared the neighborhood around its orbit,” which means it’s the most gravitationally dominant body there. (This term did initially cause some confusion because it could be misinterpreted to mean that the planet can sweep its orbit completely clean of any and all other bodies, which is impossible.) If a body fulfills the first two conditions but not the third, it’s called a “dwarf” planet.

A major advance in user interfaces that supports creative exploration would the capacity to go back in time, to review and manipulate the history of actions taken during an entire session. Users will be able to see all the steps in designing an engine and change an early design decision. They will be able to extract sections of the history to replay them or to convert into permanent macros that can be applied in similar situations. Extracting and replaying sections of history is a form of direct man ipulation programming. It enables users to explore every alternative in a decision-making situation, and then chose the one with the most favorable outcomes.

Powerful tools can support creativity: Innovation can be facilitated by powerful tools that supply templates and support exploratory processes such as brainstorming (offering links to related concepts), state-space expl oration (trying out all permutations), idea combining (systematic pairings), rapid prototyping, and simulation modeling.

with the help of new generations of innovators and explorers, these visions of the future can become a reality. As you look through these images of imaginative travel destinations, remember that you can be an architect of the future