WHAT IF WE GO BEFORE THE BIG BANG?

 • We frequently ask a simple question. How did everything start? Science provides a strong answer. The big bang. It represents the beginning of space, time, energy, and matter. But a deeper question arises in our minds. What if we went before the Big Bang? What was there? Was there anything at all?

• This seems like a simple question. The answer is no.

What is the Big Bang?

• The Big Bang was not an explosion in space. It's the expansion of space itself. Approximately 13.8 billion years ago, the universe was extremely hot and dense. Then it began expanding. Galaxies moved apart. Stars formed. Planets formed. We are involved in that process.

• Time and space began at that point. This point is crucial. When we say "before," we assume that time existed previously. But time began with the Big Bang. So asking "before the Big Bang" is equivalent to asking what is north of the North Pole. It disrupts our normal way of thinking.

Does 'Before' even exist?

• In everyday life, everything revolves around time. You wake up. You eat. You sleep. One event follows another. However, physics tells a different story about the origins of the universe.

• The Big Bang marked the beginning of time. So there may be no "before." There may be no past after that point. There's no clock. There is no sequence. There is no cause and effect, as we understand it. This idea seems strange. Our brains are not designed to imagine a place without time. However, modern physics suggests this possibility. However, scientists do not stop here. They try to go deeper.

The limits of the Science:

• Science works with evidence. It relies on math, observation, and experimentation. However, the Big Bang is a boundary. When we return to that point in time, our current physical laws no longer apply.

• Gravity behaves differently on extremely small scales. Quantum effects become stronger. We need a theory that combines gravity and quantum mechanics. Scientists refer to it as quantum gravity. We don't have a complete version yet.

• As a result, we are unable to completely describe what occurred at time zero. And we can't really describe what came before. But there are ideas. Some are strong hypotheses. Some remain guesses.

The idea of singularity:

• According to one early idea, the universe began as a singularity. A point of infinite density and zero size. All matter and energy are concentrated into a single point.

• However, infinity often indicates a problem in equations. This means that our model is incomplete. Many scientists believe the singularity is not real. It demonstrates the limit of our current understanding. So they search for better models.

The Bounce theory:

• One concept is the "Big Bounce." Instead of beginning, the universe could go through cycles. It expands, then contracts, before expanding again. In this model, there was a universe preceding ours. It collapsed due to gravity. Then it bounced back and began expanding again. That bounce is known as the Big Bang.

• If this is true, "before the Big Bang" refers to a previous universe. This idea solves a few problems. However, it also prompts new questions. What caused the bounce? What laws apply in that phase? Scientists are still studying this.

The Quantum foam idea :

• At extremely small scales, space may not be smooth. It may look like foam. Small fluctuations appear and disappear. This is known as quantum foam. According to some theories, these fluctuations could be the origin of the universe. A small quantum event has the potential to grow into an entire universe.

• In this view, there was no distinct "before." There was a steady background of quantum activity. Our universe is a single occurrence in that ocean. This concept relates to quantum mechanics. But it is difficult to test.

The Multiverse Possibility:

• Another idea is the multiverse. Our universe might not be the only one. There could be multiple universes. Each has its own laws, constants, and properties. Some models depict universes as bubbles in a larger space. Our universe can be represented by a single bubble. Others exist far away.

• If this is true, it is possible that a larger system existed prior to our universe's Big Bang. Our universe could be only a part of it. This concept is exciting. However, we currently have no direct evidence.

The Role of time:

• Some scientists argue that time may not be fundamental. It may stem from more fundamental laws. At the most basic level, there may be no time at all. Time could only appear as the universe expanded and became more complex. Previously, the concept of "before" had no meaning.

• This idea alters how we perceive reality. It teaches us that our daily experiences are not the whole picture.

What about God or Creation?

• Many people associate the Big Bang with creation. Some believe it was the moment when the universe was created by a greater power. Science cannot confirm or deny this.

• Science investigates how the universe works. It creates models based on evidence. Philosophy and religion are concerned with questions of purpose and creation. You can explore both sides. But keep them apart when studying science.

What if we could travel there?

• Consider taking a trip back in time. You travel back in time. Closer and closer to the Big Bang. As you travel back, the universe becomes hotter and denser. Galaxies disappear. Atoms break apart. Particles move freely.

• At some point, even particles lose their meaning. Physics becomes uncertain. Space and time lose their structure. You cannot go any further under current laws. It's like hitting a wall. If quantum gravity theory becomes complete in the future, it may describe this region. But that's where we'll leave it for today.

• So, even if you try to travel back in time to before the Big Bang, you may run into dead ends.

What do you think existed before the Big Bang, a previous universe, a quantum event, or nothing at all? Share your view below.