From: sylvia@not.at.this.address   
      
   On 27/06/2017 12:25 PM, James Goetz wrote:   
   > A zero-energy universe has a 1:1 ratio of negative gravitational force   
   > to positive force. Gravitons with zero mass could cohere with the field   
   > equations of general relative. Gravitons would have a 2 spin and for   
   > the sake of simplicity they would constitute the negative force.   
   > Photons have a 1 spin and constitute most of the positive force.   
   > Estimates indicate that the observable universe has 10^90 photons.   
   > Assuming general relativity, quantum gravity, and a zero-energy   
   > universe, what is the ratio of gravitons to photons?   
   >   
   I don't see that this question is capable of being answered, because   
   before we could even begin, we'd have to decide what the assumptions   
   mean, given that there is currently no combined theory of general   
   relativity and quantum gravity.   
      
   Sylvia.   
      
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