Unspoken Assumptions Underlying OO Design Maxims

For Atomic Kotlin, I’ve been struggling with an “atom” (very small chapter) during the last couple of months. It’s on object-oriented design, and it brought up a lot of feelings I’ve had for quite awhile about some of the various maxims and design guidelines that have appeared in recent decades, since OO became mainstream.I couldn’t quite put my finger on what bothered me about these design ideas. Then @codingunicorn did it for me by writing a post called Flexible code considered harmful.