There's all sorts of spiders overs here, jumping, bird-eating, fatally poisonous, you name it. I just don't like them for reasons documented elsewhere.
That scientists are fiddling with matter in ways that might spontaneously turn us all into dust frightens me.
We exist not, tenuously, perhaps, but we exist. Struggling to get to work each day, struggling to decide between open group buys, but we exist.
And everything might be terminated by one scientist working at CERN or wherever, who pushes the wrong button, or forgets to take his shoes off before entering a sterile area.