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