It's like modern fighter jets which are designed to be unstable so they are more manoeuvrable, aided by the computer controls to stop that instability being dan

It's like modern fighter jets which are designed to be unstable so they are more manoeuvrable, aided by the computer controls to stop that instability being dangerous. If the computer systems fail, the pilot will not cope and the jet will crash and burn. The JS community is unstable, but in a way that produces useful things rapidly. Stuff just gets thrown out there and the good parts stick. Certain dampening factors protect you from the most dangerous effects of this (unless you live your life at the bleeding edge) like the jet's computer controlled micro-interventions protecting the pilot form how jittery the airframe actually is. Occasionally this goes wrong and the protection fails. "Leftpad" was one such matter that caused thing to crash and burn temporarily. Luckily unlike an expensive jet hitting the ground, the damage from such incidents is relatively easy to repair after the fact. The throw-it-out-and-see-if-it-works part isn't the only issue with the JS community but it is a significant one and does relate to some of the others, though one that does provide some benefit in the form of forward momentum.