So just a simple question - if I eat dinner at 6, then dont eat breakfast til 9 or 10 the next morning after waking up.. 6pm to 10am is 16 hours. What is so ext

So just a simple question - if I eat dinner at 6, then dont eat breakfast til 9 or 10 the next morning after waking up.. 6pm to 10am is 16 hours. What is so extreme about that? I do that most days without even thinking about it. I feel no hunger after dinner, overnight or in the morning when I wake up. What exactly am I doing wrong according to this study? Im NOT hungry, therefor I dont eat. Later in the morning I feel hunger so I eat. 16-18 hours passes and I feel totally normal before my first food of the day. Do people really think this is actually an abnormally long time to not eat anything?