The speed of something thrown up has two equilibria, falling back down (0) or reaching escape velocity and moving away indefintely.
Bottles spend most of their time either empty or filled.
A problem you understand vs a problem you don’t. Trying to solve a rubics cube through the CFOP or ROUX-method, you will consistently move the cube to the solved state, even if someone messed with it. Trying to solve a rubics cube without ever having done it before, you will probably not move very close to a solved state.
The speed of something thrown up has two equilibria, falling back down (0) or reaching escape velocity and moving away indefintely.
Bottles spend most of their time either empty or filled.
A problem you understand vs a problem you don’t. Trying to solve a rubics cube through the CFOP or ROUX-method, you will consistently move the cube to the solved state, even if someone messed with it. Trying to solve a rubics cube without ever having done it before, you will probably not move very close to a solved state.