Tuesday, November 6, 2018

Me + D = Irresistible Force Paradox

The unstoppable force paradox, also called the irresistible force paradox, shield and spear paradox, is a classic paradox formulated as "What happens when an unstoppable force meets an immovable object?" The immovable object and the unstoppable force are both implicitly assumed to be indestructible, or else the question would have a trivial resolution. Furthermore, it is assumed that they are two entities.
The paradox arises because it rests on two incompatible premises: that there can exist simultaneously such things as unstoppable forces and immovable objects. The "paradox" is flawed because if there exists an unstoppable force, it follows logically that there cannot be any such thing as an immovable object and vice versa. 

Mike Alder (2004). "Newton's Flaming Laser Sword". Philosophy Now. 46:


 

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