obliviousness
When you're so drunk you think you’re a genius and still don’t get the obvious.
'I built a rocket, but I still didn’t get the obvious.', the most oblivious genius.
'I was so drunk I thought I was a genius and still didn’t get the obvious.', the most obvious drunk genius.
'I was so drunk I thought I was a genius, but I still didn’t get the obvious.', the most obvious drunk genius.