The following Bulgarian Animation by Donyo Donev explains one of the most common problems in quantum gravity papers for years now. Somebody makes a model. It contradicts a classical fact. It is modified. It breaks something. It gets modified. It is redone again and again for several times. Finally, the initial problem for whose solution the initial assumption was made is forced to be back to the theory. It is back and resolves some post-created problems but yet there exists the main problem there.
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