"We are doomed.  The microbes are going to get us.  We are a great big immerging substrate just waiting for microbes to grow on us, and even though we are still homo sapiens — you know what sapiens means, it means smart — I'd say we're not.  I'd say we're dumb because we're letting our population grow just like bacteria grow on an agar plate until they've reached the limits;  and that's dumb."