Well, theres a whole knot of pholosophy ! Not the first time folk's addressed the wierd side - Mr Barker observes that you can never experience deja-vu for the first time, Tom Anderson's Da Slockit Light refers to something that isn't there - and how can you have "potential destruction on an unimaginable scale ?" for as soon as you said it you imagined it ....
PS . is it conundrums or conundra?