I'm unsure, the only contradictory point to my proposition was that there was no designer. "in biology nothing is private or even in a class because in biology

I'm unsure, the only contradictory point to my proposition was that there was no designer. "in biology nothing is private or even in a class because in biology there is no designer, so there is no need for encapsulation." How can the point be unaffected if you are rightly saying the point is in question? Are we on the same level as the implementation when we write our classes?