I write code, and i think i fully understand my code, then i go and make a few changes look it over... looks gr8!, hit compile and run, appears to work!
but then later i find out that it breaks something somwhere else! OPS!
Now think about how much more complex the planets ecosystem is, and how little we really understand, and they want to Hack at it!!
so run in circles with your arms flapping around, its about the only we can do b4 it all blows up.