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The Novikov self-consistency principle , also known as the Novikov self-consistency conjecture , is a principle developed by Russian physicist Igor Dmitriyevich Novikov in the mid-1980s to solve the problem of paradoxes in time travel , which is theoretically permitted in certain solutions of general relativity (solutions containing what are known as closed timelike curves ). Stated simply, the Novikov consistency principle asserts that if an event exists that would give rise to a paradox, or to any "change" to the past whatsoever, then the probability of that event is zero. In short, it says that it is impossible to create time paradoxes .
A new concept for a time machine could possibly enable distant future generations to travel into the past, research now suggests. Unlike past ideas for time machines, this new concept does not require exotic, theoretical forms of matter. Still, this new idea requires technology far more advanced than anything existing today, and major questions remain as to whether any time machine would ever prove stable enough to enable actual travel back in time.
Technion Israel Institute of Technology researchers have developed a theoretical model of a time machine that, in the distant future, could possibly enable future generations to travel into the past. An article on this research was published last week in the scientific journal Physical Review . “In order to travel back in time, the spacetime structure must be engineered appropriately,” explains Prof. Amos Ori of the Technion’s Faculty of Physics. “This is what Einstein’s theory of general relativity deals with. It says that spacetime can be flat.
Home (ego death and self-control cybernetics) Contents Block-universe determinism and autonomous control The experienced world can be modelled as an ultimately unchanging, 4-dimensional spacetime block. The time axis combines with the 3 dimensions of space to form a 4-dimensional block universe, or crystalline ground of being.
Summary (To appear, click above for Chen handout) Additions, revisions, extensions are encouraged in the Forum Participants Some Philosophy of Time References McTaggart, J.
Center for Science and Society Symposium, Fall 2003 "A Matter of Time" February 5, 2003 Cheryl Chen Department of Philosophy Notes made available at talk Two opposing pictures about the nature of time: The debate between the conventional view and the block universe view is actually the combination of two debates in the philosophy of time: Why many philosophers and physicists believe in the block universe view: Worries about the block universe view: