[neutralino]

Originally Posted by AntonioLao

Their implicit consensus is that they all agreed to the exact time. But from the uncertainty principle of quantum mechanics, if time is exact then the energy (temperature) is not. But the temperature is exact then the time is not. So, take your pick. Are you for exact time or for exact energy?

I'm not sure I understand this.

"They all agreed on the exact time." What did, all the big bang models? What do you mean by the latter part of this sentence? That the model agrees with the observations on the time the He nuclei were formed? I'm not sure what this has to do with the uncertainty principle. We know the temperature the universe was at this time (through observations of the CMB now) and we also know that these He nuclei must have formed before stars formed, since they are present in the core of the stars, so it doesn't matter whether we know the exact time they formed; we only need to know that it was before the stars formed.