I don’t really think “milk customized for a calf” makes much of a difference for the point OP was making. Sorry, if this was kind of a waste of time, I just love that milk changes composition based on the baby’s situation and then got really interested in the linguistic limits of “design.”
devoid of context, your phrasing might be fine. in this context, precision is important for us to focus on the actual issue.
I don’t really think “milk customized for a calf” makes much of a difference for the point OP was making. Sorry, if this was kind of a waste of time, I just love that milk changes composition based on the baby’s situation and then got really interested in the linguistic limits of “design.”