You misunderstood my answer. The only way you get to "I want this app to be no larger than 80Mb" is to make that goal and get to work. You cannot, for example,

You misunderstood my answer. The only way you get to "I want this app to be no larger than 80Mb" is to make that goal and get to work. You cannot, for example, make your operating system boot faster from 30 seconds down to 3 seconds just by making things faster everywhere you can. You have to set the budget at three seconds and approach every problem from there. Atom is large because it has no size budget