In a multi-fold universe, gravity emerges from Entanglement through the multi-fold mechanisms. As a result, gravity-like effects appear in between entangled particles, that they be real or virtual. Long range, massless gravity results from entanglement of massless virtual particles. Entanglement of massive virtual particles leads to massive gravity contributions at very smalls scales. Multi-fold mechanisms also result into a spacetime that is discrete, with a random walk fractal structure and non-commutative geometry that is Lorentz invariant and where spacetime nodes and particles can be modeled with microscopic black holes. All these recover General relativity at large scales and semi-classical model remain valid till smaller scale than usually expected. Gravity can therefore be added to the Standard Model. This can contribute to resolving several open issues with the Standard Model. Different recent experiments have argued against, or in favor of a sterile neutrinos. In a multi-fold universe, or whenever we can add a non-negligible gravity contribution at the scales of the Standard Model, we showed how to explain the mass of the neutrino without New Physics and predict the number of generations for each fermions family, including the number of neutrinos flavors, to be exactly 3. Therefore, in a multi-fold universe, there should not be conventional sterile neutrinos: right-handed flavored neutrinos no ability to interact with W± and Z0 (they only interact only with the Higgs and though gravity) suffice to explain the neutrino oscillation anomalies encountered so far. The results extend to SMG.