Context: While the Big Bang model is well established in cosmology, it is likely to be refined in the future. Little is known about the earliest moments of the universe's history. The Penrose–Hawking singularity theorems require the existence of a singularity at the beginning of cosmic time. However, these theorems assume that general relativity is correct, but general relativity must break down before the universe reaches the Planck temperature, and a correct treatment of quantum gravity may avoid the singularity.

Question: The Big Bang model is solidly established in what?
Answer: cosmology

Question: How much is known about the early states of the universe?
Answer: i

Question: Which theorems require the existence of a singularity at the beginning of time?
Answer: The Penrose–Hawking singularity theorems

Question: These theorems have to assume what theory is correct?
Answer: general relativity

Question: These theorems state that general relatively must break down before what?
Answer: before the universe reaches the Planck temperature

Question: What does the Planck temperature require the existence of?
Answer: Unanswerable

Question: When does the Planck temperature show a singularity existed?
Answer: Unanswerable

Question: What will happen to the idea of the Planck temperature in the future?
Answer: Unanswerable

Question: What does the Planck temperature assume is correct?
Answer: Unanswerable

Question: When must quantum gravity break down?
Answer: Unanswerable

Question: The Penrose-Hawking model is solidly established in what?
Answer: Unanswerable

Question: How much is known about the early states of singularity theorems?
Answer: Unanswerable

Question: Which theorems require the existence of a singularity at the beginning of temperature?
Answer: Unanswerable

Question: These theorems have to assume what singularity is correct
Answer: Unanswerable

Question: These theorems state that a singularity must break down before what?
Answer: Unanswerable