How sad . . .
I teach my students and even experienced pilots, every now and then, to fly our aeroplane 'like a bird...' Piper cub, Warrior, Cessna, 737 or A320 with a towel or other means covering the instruments . . .
Low level, in the circuit, or at FL 390 . . .
Some 'aces' however say this is: 'not a professional attitude' . . .
Nevertheless, I decided to stick to my 'teaching attitude' . . .
Kind regards, learner . . .