The "butterfly effect" concept seems to have come from playing around with starting conditions for theoretical models. I am not sure that there have been such observations in physical reality.
"He discovered the effect when he observed runs of his weather model with initial condition data that were rounded in a seemingly inconsequential manner. He noted that the weather model would fail to reproduce the results of runs with the unrounded initial condition data. A very small change in initial conditions had created a significantly different outcome.[3]"
https://en.wikipedia.org/wiki/Butterfly_effect
The concept of cosmic interconnectedness seems to be valid - at least in my observation.
There remains however the question of how such a system could come into existence. Is there a Causeless Cause as taught to me by Catholic priests?
*Deleted Hindi words, no definition again*