OptionVotes
NO
YES
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OptionProbability
Different observers may have time's arrows pointing in different directions
Anthropic selection: observers necessarily find themselves in regions with increasing entropy
The arrow reflects brute initial conditions; there is no deeper explanation to be had
Growth of quantum entanglement under unitary dynamics explains thermodynamic irreversibility
Gravitational instability and cosmological expansion generate the observed thermodynamic arrow
Inflationary cosmology dynamically selects special low-entropy initial conditions, explaining the arrow
Entropy increase is emergent from coarse-graining and typicality; no deeper micro-physical asymmetry is needed
Time’s arrow arises from asymmetric boundary conditions at both temporal ends (two-time boundary conditions)
Landauer’s principle and information-erasure costs make entropy increase a consequence of information processing constraints
The Past Hypothesis is a fundamental lawlike assumption, and a low-entropy beginning fixes the arrow
Computational irreversibility and algorithmic complexity growth are the deeper source of the arrow
Objective quantum-collapse dynamics are time-directed (e.g., GRW), grounding macroscopic irreversibility
Penrose’s Weyl curvature hypothesis: near-vanishing initial Weyl curvature sets the gravitational arrow
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