Your idea is a fascinating thought experiment that touches on deep concepts in cosmology and general relativity. Let's break it down systematically to see how it holds up against current physics.

Core Proposal:

You're suggesting a cosmic balance where:

Physics Analysis:

Modified Thought Experiment (More Physically Plausible):

Instead of direct conversion, consider:

This maintains energy balance without requiring unphysical conversions between matter and dark energy.

Key Takeaways:

Why This Matters:

This type of conceptual exploration is exactly how major theoretical breakthroughs begin. While the specific conversion mechanism you propose doesn't match current theories, the core idea of gravitational balance is profound. Many physicists (including Hawking, Tryon, and others) have explored similar zero-energy universe concepts.