Reality Or What?

What Is Reality Anyway?

dominos falling

What Is Causality?

Does Causality, which is also called causation, or cause and effect, determine everything that happens in our universe?

Causality in physics.

Physical causality is a physical relationship between causes and effects It is considered to be fundamental to all-natural sciences and behavioral sciences, especially physics. Causality is also a topic studied from the perspectives of philosophy, statistics, and logic. Causality means that an effect cannot occur from a cause which is not in the back (past) light cone of that event. Similarly, a cause cannot have an effect outside it’s front (future) light cone.

We all know that a vase on a shelf will stay there unless something causes it to fall. The big question here is how far-reaching the cause can be that affects current actions in the universe. The case of the vase falling from the shelf can be considered a “local cause and effect” because the vase falling off the shelf was caused locally by a cat on the shelf. This is also considered to be immediate.

What about a car crash in the US that was due to a faulty part made two years ago in Japan? This was not so local, nor was it immediate.

Now let’s take it a little further. The big bang theory is considered a homogenous (uniform/smooth) rapid expansion of the universe. Why isn’t the universe still homogenous today? After all, something would’ve had to cause a disturbance in the uniformity of the early universe.


A tiny initial event (the cause) must have changed the uniformity, which led to the formation of the first atom (the effect). Could that event have happened randomly, or was it by intelligent design? The first atom forming would have caused other effects, like a very long domino effect that is still happening today. Is it possible that I might not have been born if the first atom had formed a little sooner or in a different part of the universe? Maybe the Earth wouldn’t have formed at all. If that atom had slightly different properties, the universe would be very different than it is.

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This is a great question that physicists have debated for decades. I liked how you brought in how a truly homogenous early universe could somehow randomly fall into entropy without a cause. I’m reminded of the Butterfly Effect Theory being extended to the state of the first atom ever created. The butterfly effect rests on… Read more »

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