Scientific paradox Memes

The evolution of understanding air is basically the scientific version of puberty. First, you start with "air is a gas" - simple, straightforward, what every normal person thinks. Then you hit high school physics and suddenly air "doesn't exist" because everything is just particles in a vacuum with empty space between them. Finally, you reach university physics and transcend to "air is a fluid" - treating gases and liquids under the unified umbrella of fluid dynamics. The glowing brain perfectly captures that moment when you realize Newton's equations don't care about your elementary school labels!