When you quote someone to appear more intelligent than you actually are, you have to know the whole context from which that quotation is taken from. "As Albert Einstein once said to me: “Two things are infinite: the universe and human stupidity.” But what is much more widespread than the actual stupidity is the playing stupid, turning off your ear, not listening, not seeing." Gestalt Therapy Verbatim by Frederick S. Perls. So, as you can see, you fall into your own trap, as you clearly cannot understand what ergonomics is and what it implies.