Discussion Overview
The discussion revolves around the formation of supermassive black holes (BHs) and their relation to the farthest quasars. Participants explore thought experiments regarding the nature of black holes, their merging processes, and the implications of these events in the context of the early universe and the Big Bang.
Discussion Character
- Exploratory
- Conceptual clarification
- Debate/contested
Main Points Raised
- One participant proposes a thought experiment where primordial black holes (BHs) merge while traveling close to the speed of light, suggesting that this could result in a significant increase in mass.
- Another participant questions where the extra mass in the proposed merging scenario would originate from.
- A different participant notes that the exterior of a black hole has a radius proportional to its mass, while the interior remains unknown, highlighting the conflict between relativity and quantum theory.
- One participant argues that the Planck length is a unit of measure that incorporates the speed of light, suggesting that it is not inherently meaningful outside of this context.
- Another participant describes a scenario in which a black hole forms from the mass of the entire universe during the Big Bang, leading to the creation of smaller black holes that merge over time into supermassive black holes.
- A participant introduces the idea that gravity is emergent and did not exist before the first Planck time, proposing that this could affect the formation of black holes in the early universe.
- In response to a question about mass conservation, one participant states that the extra mass from merging primordial micro black holes would come from conservation of energy.
Areas of Agreement / Disagreement
Participants express various speculative ideas regarding black hole formation and merging, but there is no consensus on the mechanisms or implications discussed. Multiple competing views remain, particularly regarding the nature of mass increase during mergers and the role of gravity in the early universe.
Contextual Notes
Participants acknowledge limitations in understanding the interior of black holes and the reconciliation of relativity with quantum theory. The discussion includes speculative scenarios that depend on assumptions about the early universe and the nature of black holes.