Earlier quoted context omitted.
I didn't speak incorrectly. You didn't understand my point and apparently not the GP's either. Diving into the construction of the human body isn't relevant to a discussion on design philosophy weighing homogeneous vs. heterogenous constructs. "But the body isn't homogeneous! It's just mostly homogenous" is a splitting hair argument even if I'd believed you'd kept the plot.
It is not mostly just homogenous as previously described. It is a hefty mix of cells and extra cellular material, or are you going to argue that hair is made of cells too and that distinguishing between alive and dead cells is splitting hairs? The fact that you even acknowledge it is splitting hairs indicates that you are aware that your analogy is flawed as you can't really think of the body as just cells and that i…
But yeah, the analogy isn't perfect. And the academic nature of the metaphor's subject was obviously going to invite some rube to point out how it's not 100% spot on and how that's well worth talking about.
You're just arguing my greater point anyway: Your chosen level of perspective with these metaphors (and real issues) will invert the design philosophy. At one level, everything is different and using different means for the same goal, at another level, everything is the same and using the same means for different goals. If it's not organs, then its cells, then its "extracellular material and are dead cells different from live cells!?", then its atoms and then quarks.
But please, go ahead and educate me on how atoms aren't all the same and how that too is a critical point to be made in this conversation.