> it will happily say good riddance to bad tenants. I don't think this is a good analogy: tenants are other people, who came from somewhere else, who rent your

> it will happily say good riddance to bad tenants. I don't think this is a good analogy: tenants are other people, who came from somewhere else, who rent your house temporarily. Humans are (as far as we can tell so far) entirely native to Earth: we evolved here. So we're really very much like a cancer: an original part of the organism, but toxic and deadly to it.