Before / outside the Big Bang · Frontiers of knowledge

SIMULATING BEFORE / OUTSIDE THE BIG BANG

▸ Drawing the observable-universe bubble (~46 Gly)…

▸ Building the horizon of knowledge — the observation edge

▸ Loading speculative MODELS (inflation · cyclic · multiverse · quantum)

▸ Rewinding the cosmic clock to t = 0…

▸ ⚠ Note: this is an OPEN QUESTION — we don't know, may be unknowable

▸ Ready — Online. ✅

Cosmic horizon

🌌 Observable horizon

Model in view—

Status—

"Before the Big Bang?"—

Observable horizon—

Evidence level—

Viewing—

The honest boundary

This is an OPEN QUESTION. "Before the Big Bang" may be MEANINGLESS if time itself began with the Big Bang (Hawking). Every model below is UNTESTED SPECULATION — presented in parallel, asserting NONE is correct.

🌌 Honest science says "I don't know" — and that is exactly where discovery begins. The horizon of knowledge is not a wall, but an invitation.

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Pick a "Model" (horizon / eternal inflation / cyclic universe / multiverse / quantum origin / fine-tuning) — each is a WAY OF IMAGINING, not an answer · tap a concept to see "known / UNKNOWN"

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Spacetime "size" a(t) by model a(t) — forever-expanding · cyclic · no-boundary (varies by model)