You make a very good point there re. efficiency v robustness (a.k.a. resilience). The latter is often seen as perfectly expendable, as icing on the cake, as was

You make a very good point there re. efficiency v robustness (a.k.a. resilience). The latter is often seen as perfectly expendable, as icing on the cake, as waste (because it's not money in their pockets) by neo-liberals, in other words, they believe 'redundancy' (as in 'reserve') to be redundant (as in 'too much, extraneous'). But in a real world, you need redundancy. A pantry is a redundancy, a fridge is, and they're good reasons to spend money on things taking up space while doing apparently nothing and to risk food going bad rather than not store anything.