Physics explains how matter, energy, space, and time interact under fundamental laws. These laws govern motion, forces, and the behavior of the universe at every scale, from subatomic particles to galaxies. While many physical principles are well established, exploring hypothetical changes to these laws helps clarify why reality behaves as it does.
The topics collected here examine how altering physical constants or conditions would affect natural systems, revealing the constraints that shape the universe.
Gravity and Planetary Motion
Gravity and motion determine the stability of planets, stars, and orbital systems. Small changes can produce large-scale consequences.
- What If the Earth Suddenly Stopped Spinning?
- What If Gravity Was Stronger on Earth?
- What If the Moon Disappeared?
Time and Light
Time and electromagnetic radiation impose fundamental limits on causality, perception, and communication.
- What If Time Flowed Backwards?
- What If the Speed of Light Was Slower?
- What If We Could Control Time?
Biological and Environmental Limits
Changes to physical conditions can affect biological systems and planetary environments in profound ways.
- What If Oxygen Levels Doubled?
- What If Humans Never Needed Sleep?
- What If Humans Could See All Light Spectrums?
These scenarios highlight the constraints imposed by physical laws and illustrate why even small changes could dramatically alter the structure of reality.