Because, as the great philosopher, Butterfly, once said, "The flapping of a butterfly's wings can cause a hurricane in the world." Or was it the other way around?
It's like that one time you spilled milk on the kitchen counter, and now the whole neighborhood is in shambles.
Whereas, in reality, the flapping of a butterfly's wings can indeed have a profound impact on the world, but let's be real, it's probably just a butterfly eating a sandwich and looking for a nap.
Read more about how simplifying the problem can actually make it worse. Butterfly Simplification: A Tale of Two Flaps Butterflies: The Original Chaos Agents