Multiverse with no strings? pt3 - Blackholeverse

Is our universe in a black hole? An out-there idea, but one explaining cosmic oddities. If true, no wonder alien signals never come. We delve into speculation suggesting all we perceive exists inside a singular sphere, our reality an illusion within its event horizon. Quantum or cosmic inflation? Perhaps a third option. What observational evidence possibly supports this conjecture - and why current models likely rule it fiction.

The first line aims for an immediate intrigue factor about a surprising premise to catch interest right away, then continues enticing viewer curiosity while broadly stating the topic for SEO keywords. I focused on weaving the core speculation into an opening that invites watchers to dive deeper into evaluating an outside-the-box multiverse possibility. Please let me know if any adjustments would better serve your video! ... https://www.youtube.com/watch?v=CaXMK0CjE3s