Is time travel backwards possible?
Time travel - moving between different points in time - has been a popular topic for science fiction for decades.
Answer and Explanation:
Franchises ranging from "Doctor Who" to "Star Trek" to "Back to the Future" have seen humans get in a vehicle of some sort and arrive in the past or future, ready to take on new adventures. Each comes with their own time travel theories but is not actually possible.
Albert Einstein had stated in his time travel theory that time is relative and always forward-moving. So according to him, it isn't possible.
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Learn more about this topic:
from SAT Physics: Help and ReviewChapter 2 / Lesson 8