However, we don't want to speculate on this further because the development of quantum computing is in an early state; we don't know yet how a complex quantum computer like a quantum brain may operate. But what we can do is, we can examine observations which lead to a quantum mechanical interpretation as evidence of a quantum brain. Therefore, we want to view the results of the so-called quantum cognition from a different angle. In quantum cognition, it has been shown that the mathematical formalism of quantum theory can be adopted to model cognition showing advances over traditional classical probability theory in many aspects of cognition. But researchers in this field argue that they only use the mathematical formalism of quantum mechanics without assuming any underlying quantum physics \cite{Bruza_2015,Aerts_2009}