An idiom used to explain how a seemingly negligible or "weightless" variable can have a massive, tangible impact on an outcome.
It refers to the physics concept of radiation pressure. Because light carries momentum, the sunlight hitting a city like Chicago on a clear day actually pushes down on it, adding roughly 300 lbs of physical force to the city's total weight.
It refers to the physics concept of radiation pressure. Because light carries momentum, the sunlight hitting a city like Chicago on a clear day actually pushes down on it, adding roughly 300 lbs of physical force to the city's total weight.
Example 1:
Person A: "I only changed a single line of code and the entire server crashed. I don't get it."
Person B: "Chicago weighs more on a sunny day!"
Example 2:
Person A: "I barely touched the gas pedal and we spun out!"
Person B: "Chicago weighs more on a sunny day, man."
Example 3:
Him: "She broke up with me just because I didn't hold the door open?"
Her: "Chicago weighs more on a sunny day."
Example 4:
"If I had found my keys ten seconds faster, I'd be here. Chicago weighs more on a sunny day."
Person A: "I only changed a single line of code and the entire server crashed. I don't get it."
Person B: "Chicago weighs more on a sunny day!"
Example 2:
Person A: "I barely touched the gas pedal and we spun out!"
Person B: "Chicago weighs more on a sunny day, man."
Example 3:
Him: "She broke up with me just because I didn't hold the door open?"
Her: "Chicago weighs more on a sunny day."
Example 4:
"If I had found my keys ten seconds faster, I'd be here. Chicago weighs more on a sunny day."
by anonymous202997 December 4, 2025
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