I think that > swapped out regularly as needs changed was the key design mistake, because it glosses over the fact that people get attached to things for sent

I think that > swapped out regularly as needs changed was the key design mistake, because it glosses over the fact that people get attached to things for sentimental reasons. Even if it were easier to swap out pods, I bet that some people would stubbornly remain in their older pods "because it is the pod I grew up in" for example. Designers in all sorts of fields (even software) often fall for this fallacy, because it would just be so much more elegant if humans conformed to your vision for the world instead of the other way around.