Cai Zhiyuan paused slightly, then continued explaining:
"Suppose I say now, 'I have a strong ability to perceive temperature,' what kind of ability is this specifically?
"I must be able to accurately judge the exact environmental temperature through physical sensation, with an error margin of 1-2 degrees; only then can it be called strong.
"If I can only feel hot or cold without telling the exact temperature, it doesn't count, because everyone except for a vegetative person can perceive hot and cold.
"A strong perceptual ability must be quantifiable to be considered strong.
"Having a strong ability to perceive reality means having a more accurate perception of the details and numbers in reality.
"For instance, an apple sold for 100 bucks, anyone can feel that's too expensive, but how much should it cost not to be expensive? You need to provide a number accurate to the decimal point to indicate stronger perception."
