https://en.wikipedia.org/wiki/Machine_code machine code is below assembler.
so I don't know about you, but per definition I would have to remember the meaning of
00010010001000100010010001010100010010100101001001010010101010010100100101010101001010
So the first thing that comes to my mind -> I am already to stupid to remember all functions, methods etc in all the languages I write in. How f*cked would I be using machine code.
To quote Gottfried Leibniz -> (translated via google translate)
It is unworthy of wasting the time of excellent people with servile calculations, because even the simplest can safely write down the results when using a machine.