The paper "Spontaneous creation of the universe from nothing" by Dongshan He, Dongfeng Gao and Qing-yu Cai claims that our universe was created by the quantum fluctuations in the metastable false vacuum which produce "true vacuum bubbles". Our universe is a true vacuum bubble according to this paper. But does not that contradict our observations? Our universe is not a true vacuum, it is a false vacuum according to Higgs mass.
This paper claims that the universe was created out of nothing. But this nothing is really something - "false vacuum". It is not nothing, this paper did not explain from where this vacuum came from in the first place. Or do they consider this vacuum as an eternal entity?