How Many Stars Are There in the Milky Way?

Enrico ferme was a italian american physicisist who develop first the nuclear reactor at the university of chicago. He believed in flushing out your ignorance and decomposing the problem into as many tractable components as possible. Other examples might be estimateng how much the empire state building way ways, or are estimating the likelihood of extra extra terrestrial civilizations elsewhere in the milky way. Sounds a lot like brain teasers that google used to ask to hire exactly.