Re: How many particles are there in the Universe?

Posted by lanecove on August 12, 2003 at 10:07:57:

In Reply to: Re: How many particles are there in the Universe? posted by moorglade on August 12, 2003 at 09:15:05:

Moorglade,

If I recall correctly, a key point of the argument is the application of various conservation laws; so once the relevant symmetry is broken (perhaps even before), the universe is stuck.

I'd doubt these arguments apply to dark matter (since we don't even know what it is), even less to dark energy. I think you'd probably need to be careful with what the arguments say; for example, it may be that the sum total of (particles - anti-particles) is fixed; pair production would create more of both but not change the sum.

Let us know what you find.

Regards
lanecove

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