Philosophical Understandings of Time Travel
Theories of time travel are riddled with questions about causality and paradoxes. Compared to other fundamental concepts in modern physics, time is still not understood very well. Philosophers have been theorizing about the nature of time since the era of the ancient Greek philosophers and earlier. Some philosophers and physicists who study the nature of time also study the possibility of time travel and its logical implications. The probability of paradoxes and their possible solutions are often considered.
For more information on the philosophical considerations of time travel, consult the work of David Lewis or Ted Sider. For more information on physics-related theories of time travel, consider the work of Kurt Gödel (especially his theorized universe) and Lawrence Sklar.
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Famous quotes containing the words time and/or travel:
“Nor envy’s snaky eye, finds harbour here,
Nor flatterers’ venomous insinuations,
Nor cunning humorists’ puddled opinions,
Nor courteous ruin of proffered usury,
Nor time prattled away, cradle of ignorance,
Nor causeless duty, nor comber of arrogance,
Nor trifling title of vanity dazzleth us,
Nor golden manacles stand for a paradise;”
—Sir Philip Sidney (1554–1586)
“Yes, but I do not travel to find comfortable, rich, and hospitable people, or clear sky, or ingots that cost too much. But if there were any magnet that would point to the countries and houses where are the persons who are intrinsically rich and powerful, I would sell all, and buy it, and put myself on the road to-day.”
—Ralph Waldo Emerson (1803–1882)