Can Small Bangs Create Mini Universes?

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Discussion Overview

The discussion revolves around the concept of whether small bangs, such as those from explosions or other events, could create mini universes, akin to the Big Bang. Participants explore the nature of the Big Bang and its implications for understanding smaller-scale events.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions if small bangs, like a bomb blast or lighting a match, could create nano-scale universes that exist briefly, suggesting that all bangs should follow the same laws of physics.
  • Another participant clarifies that the Big Bang was not an explosion in the conventional sense, emphasizing the unique nature of the event and the creation of spacetime.
  • A different participant elaborates that the term "Big Bang" is misleading, comparing it to other terms that do not accurately describe their subjects, such as "evening star" or "black hole."
  • Further, a participant explains that the Big Bang was a gravitational singularity and that it did not occur at a specific point but rather everywhere, contrasting it with traditional explosions where particles fly outward.
  • Another comment reiterates that the term "Big Bang" was originally coined in a derisory context, highlighting the disconnect between terminology and the actual phenomenon.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the Big Bang and its implications for smaller events. There is no consensus on whether small bangs could create mini universes, and the discussion remains unresolved.

Contextual Notes

Participants highlight the complexity of the Big Bang and its misrepresentation in popular media. The discussion reflects varying interpretations of the term "bang" and its implications for understanding cosmological events.

Muhib
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I am not a physicist or science person at all and my education after high school has been in arts, so excuse me if it is a stupid question:

If universe exists in its shape as we know because of big bang, then is it possible that in all events of bangs, no matters how small they are like bomb blast or even lighting a match stick, there is a nano scale of universe created and ended in nano seconds? If not, then why? After all all bangs should follow the same laws of physics.
 
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In other words, the "bang" in "Big Bang" is not actually anything like a bang, and just a colourful, if rather misleading, way of describing a rather unique and complex process.
It's no more an explosion than the "evening star" is an actual star or a black hole an actual hole.
 
The big bang was not an explosion at all, it was a gravitational singularity, the name is frequently deceptive, and the prevalent TV programs that numerous individuals watch surely don't help by delineating it as some white spot in space that exploded into an universe. The big bang did not happen at a particular point, it happened everywhere, there is no space outside of the universe that it is expanding into.

In a real explosion, particles fly outward from the source of the explosion, where as in the case of the big bang the space between any two points itself is literally expanding,

The singularity is when the (scalar) curvature of space-time diverges to infinity, and geodesics/world-lines end abruptly.
 
Muhib said:
If universe exists in its shape as we know because of big bang, then is it possible that in all events of bangs ...
The term "big bang" was invented as a totally derisory term used to describe a phenomenon which the inventor did not believe in, but which turned out to be reality (although NOT a "bang" as has already been pointed out) despite his disbelief. Another good example of how the universe really doesn't care what we think, it just does what it does.
 
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