Author: Vinay Ananda
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Ⅺ: What Is Time?
The properties of time that feel most immediate and certain in experience are precisely the ones that appear nowhere in the fundamental equations of physics. From Newton’s mechanics to quantum theory, our core laws remain stubbornly time-symmetric, treating the past and future as fundamentally interchangeable. When we attempt to merge these theories into a single…
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X: Black Hole Information Paradox
When a black hole evaporates, is the information about what fell in preserved or destroyed?
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Ⅸ: Is Reality a Lower-Dimensional Projection?
The information describing a volume of space may be entirely contained on its boundary surface. This article examines where that idea came from, what the AdS/CFT correspondence established, and what it implies about the nature of space, gravity, and information.
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Ⅷ: Singularities
What are singularities? How do they form from the death of stars? What are the types general relativity predicts, and what do the three leading approaches to quantum gravity each propose as a resolution?
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Ⅶ: Is Spacetime Discrete?
Is spacetime smooth and continuous, or does it have a fundamental granular structure? This article examines the theoretical and experimental evidence for spacetime discreteness.
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Ⅵ: Asymptotic Safety
Every attempt to quantise gravity using standard methods produces infinities that cannot be controlled. String theory and loop quantum gravity solve this by introducing something new. Asymptotic safety asks a different question: what if nothing new is needed? What if gravity, at the highest energies, simply stops changing?