eventually you'll have more and more ducks so you'll start getting science bread drops more often and won't have to tier up ducks for science bread as often.
Yeah the scaling of bread begins to increase rapidly after a certain amount of ducks to encourage us to continue tiering up our ducks. In previous versions of the game we could stay in the first few tiers of ducks and just gather tons of ducks that way without ever having the higher tiers of ducks.
