Different Gravities for Leptons and Baryons

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There was something in last week's NewScientist about the possibility that there are two gravitational forces, one for leptons and one for baryons. Are physicists giving this serious thought?
 

Vanadium 50

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I doubt it. The article was awfully skimpy on details - like a reference to a real paper, or even a name. Just some anonymous "scientists".

The possibility of leptons and baryons having significantly different responses to gravity was ruled out in 1890 by Lorand Eotvos.
 
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There was something in last week's NewScientist about the possibility that there are two gravitational forces, one for leptons and one for baryons. Are physicists giving this serious thought?
Interesting idea though newscientist
 
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Vanadium 50

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Why is an idea excluded by data "interesting"? Would the idea that apples fall up instead of down be interesting?
 

jtbell

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Interesting idea though newscientist
This isn't even an article, it's a letter to the editor. If he had posted it here on PF, without any references to show that physicists are actually discussing this possibility seriously, we probably would have deleted it as being overly speculative.
 

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