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Merch
Quizzes
FAQ
About
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Time & Reality
What philosophical concept claims time is an illusion?
Materialism
Eternalism
Empiricism
Idealism
None
What happens to time at the event horizon of a black hole (from an outside observer’s perspective)?
It appears to freeze
It loops endlessly
It reverses
It speeds up rapidly
None
What is the grandfather paradox?
A paradox involving infinite ancestors
A logic problem in aging simulations
Killing your grandfather in the past prevents your own existence
A theory that time has a genetic memory
None
What is time dilation?
Reversal of time in black holes
The slowing down of time for an object moving near the speed of light
Expansion of space causing slower time
A complete stop in time during quantum events
None
Which concept suggests the future can affect the past?
Event symmetry
Tachyon collapse
Time folding
Retrocausality
None
What does Einstein’s theory of relativity say about time?
Time passes differently depending on speed and gravity
Time flows backward in strong gravity
Time is the same everywhere in the universe
Time is unaffected by motion
None
According to physics, what is the arrow of time linked to?
The expansion of the universe
Quantum spin direction
Earth's rotation
Entropy and the second law of thermodynamics
None
What is the “block universe” theory?
The universe blocks time from affecting matter
Time loops endlessly with no past or future
All moments in time exist simultaneously
The universe is limited to 3 dimensions
None
Which particle is theorized to travel backward in time?
Photon
Neutrino
Gluon
Tachyon
None
What is a light-year a measure of?
Distance, not time
Time in galactic rotation
Time it takes light to orbit Earth
Time taken for light to decay
None
Time's up
