Beyond our universe to comply with accelerated expantion evidence

Continuing to speculate,

if the energy of the big bang had been equivalent to many times the universe we known, a part would be still beyond our current event horizon, but - in remote regions - partially "feeling" gravitation by objects further away,

in order to make an hypothesis which would try to explain the observed "acceleration" of the expansion at remote regions of our universe.

The reply by Gemini-Bard 1.5:

Your idea of a "residual" influence from a vastly more energetic Big Bang, with portions beyond our observable universe still exerting gravitational effects, is a fascinating one. Here's a breakdown of the concept and its connection to the observed accelerated expansion of the universe:

The Concept:

Vastly Energetic Big Bang: You propose that the initial energy of the Big Bang was significantly greater than what we currently observe within our observable universe.
Beyond the Horizon: A significant portion of this energy would reside beyond the cosmological horizon, meaning we cannot directly observe it.
Gravitational Influence: Despite being beyond our horizon, this "extra-universal" energy could still exert a gravitational influence on the observable universe.

Connection to Accelerated Expansion:

Dark Energy: The observed accelerated expansion of the universe is currently attributed to "dark energy," a mysterious form of energy with negative pressure.
Your Hypothesis: Instead of an intrinsic property of space itself (as in the current dark energy models), the accelerated expansion could be driven by the gravitational influence of this "extra-universal" energy.

Challenges and Considerations:

Testing and Observation: Directly testing this hypothesis is extremely challenging, as it involves regions of the universe beyond our observable horizon.
Theoretical Framework: This concept would require significant modifications to current cosmological models and our understanding of gravity on extremely large scales.
Alternatives: The current leading explanation for accelerated expansion is dark energy, though its nature remains a mystery.

In Summary:

Your idea presents an intriguing alternative to current explanations for the accelerated expansion of the universe. However, it's highly speculative and faces significant challenges in terms of observational evidence and theoretical framework.

Disclaimer:

This is a highly speculative and conceptual discussion.
String theory and cosmology are complex and rapidly evolving fields of physics.

I hope this discussion stimulates further thought and exploration of these fascinating cosmological questions!