Not utterly impossible although extremely unlikely. The possibilties cannot be reduced to zero occurence so just maybe to a percentile with so many zeros after the point before positive numbers appear that you begin to feel queasy. A technical way of saying, "Yeah. Right. If you think so. Now go away." As in, "Well, yes, I suppose there is a non-zero probability that Dr. Pepper was the messiah and the soft-drink bearing his name is a sacrament that confers more than just a sugar rush and actually bestows transcendence of this mortal coil." Or, "There is a non-zero probability that Country music is a genre that could eventually produce at least half a bar of music that will not kill brain cells."