This is such a weird thing to say. Essentially _all_ scientific ideas are, at least to begin with, poorly defined. In fact, I'd argue that almost all scientific ideas remain poorly defined with the possible exception of _some_ of the basic concepts in physics. Scientific progress cannot be and is not predicated upon perfect definitions. For some reason when the topic of consciousness or AGI comes up around here, everyone commits a sort of "all or nothing" logical fallacy: absence of perfect knowledge is cast as total ignorance.