On Friday, November 6, 2020 at 5:32:14 AM UTC-6 [email protected] wrote:

> On Fri, Nov 6, 2020 at 6:16 AM Lawrence Crowell <[email protected]> 
> wrote:
>
> *> It is hard to know whether there are primordial BHs. There must be 
>> bounds on them. for if there were a lot of them this would mean the early 
>> entropy of the universe would be too large.*
>
>
> Too large for what? 
>
>  John K Clark 
>

If the entropy of the early universe were too large the current universe 
would be very different. In fact with black holes, if there were too many 
primordial BHs the universe would contain little other than BHs.

LC

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