Of course it's scientific, but he's talking about long muscles like bodybuilding. Professional people always look at their watches when eating. I have been practicing bodybuilding for 25 years. People who used to go to competitions ate 40 eggs a day, and they all ate 3-4 eggs by the watch. Now it's all protein powder, and you should eat it at least 6-7 times a day. If you want to gain weight, it is easy. Eat more high-fat fried food every meal, don't go anywhere at night, lie still on the sofa and eat high-calorie snacks while drinking beer. 15 days will make you fat. Eat it.