change right because we are able to understand the change also even if you are very disciplined developer and you go through that really painful review process in my experience what does it happen when you go and tell the other like well you know I think your design is your no no no your sorry it's gonna improve your design or we could use a different library that will save us some time or some resources or whatever what usually happens tell whoever say like yeah I think you are right but you know I have already spent