I assume that all of the scientific and technological progress will significantly stumble, if not halt, if only we remove clean tap water and toilets. That’s it. All of the bright minds will be constantly occupied with hunting for drinking water, struggling with digestion issues, trying to find a place where to empty the bowels.
I’ve heard a quote somewhere (paraphrasing): “As soon as things start to work properly, they are not called ‘technology’ anymore.” Yeap, clean water is considered a human right.
All of this is just to mention that I’m very grateful for the modern plumbing and sewer infrastructure.