Why can't gravity be renormalized?

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ASD16
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why can't gravity be renormalized?? i am just a novice in quantum physics...so i wud request to have an answer in a less technical way...
 

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Do you understand what renormalization means, and why electromagnetism *can* be renormalized?
 
i do understand wat it means...but of course i don't know the complete mathematics involved in it...correct me if my concept is wrong...it is a method used to cancel the infinities that come up in quantum field theories...on the other hand...how much i understand...electromagnetism is renormalizable becoz the quantum of light photon is a spin 1 particle...whereas graviton is a spin 2 particle...and so non-renormalizable...but y??