It's a feature, not a bug. As tux3 describes there has to be a combination between easy access and dealing with threats. I would like to add to tux3's comparis

It's a feature, not a bug. As tux3 describes there has to be a combination between easy access and dealing with threats. I would like to add to tux3's comparison that in this analogy the small criters are vital for cell-health, they bring resources. And i would also like to add that nature has a way of propagating the white/black-list as well which means that predators get "marked" hence the mutation (a bit like a criminal wearing a disguise?) element viruses have is so important for them, and the thing that makes them so dangerous.