What butterfly effect have you personally witnessed?
A butterfly effect is the phenomeon that a small change in initial conditions that leads to a significantly different result than if the initial conditions haven't been changed. Have you personally witnessed such phenomeon?
Example: Your pet seeks attention and you decided to spend a few seconds to pet your pet before leaving for work/a party/shopping for grocerries/etc. You drive to an intersection and the light turns red just a few seconds before you arrive, the car ahead of you passed the intersection sucessfully. When you eventually arrive at the next intersection, you find the car ahead of you was hit on the side by another car from the intersecting road. The driver in the car ahead of you was instantly killed.
You've just been saved by your pet.
I'll just say as a guy that does construction and remodeling, there is no better place to witness the butterfly effect than in a house with lazy framers. Any one of the contractors being lazy can often times be cause effects down the road .
Would you like that square to the door, or square to the ceiling? You can't have both
I'm also in the construction industry, and you're so right. Good framing helps makes every step afterward go much more smoothly. Fixing bad framing with drywall mud and trim is hell.