 But although you are probably happy now to conclude (on the basis of the prime-number sequence) that there are extraterrestrials out there, in fact there is another thing needed. ‘If I flip a coin 1000 times, I will participate in a highly complex (that is, highly improbable) event…. This sequence of coin tosses will not, however, trigger a design inference. Though complex, this sequence will not exhibit a suitable pattern.’ Here, we have a contrast with the prime-number sequence from 2 to 101. ‘Not only is this sequence complex, but it also embodies a suitable pattern. The SETI researcher who in the movie Contact discovered this sequence put it this way: “This isn’t noise, this has structure”’ (pp. 27–8). What is going on here? You recognize in design something which is not just arbitrary or chance or which is given status only after the experiment or discovery, but rather something that was or could be in some way specified, insisted upon, before you set out. You know or could work out the sequence of prime numbers at any time before or after the contact from space. The random sequence of penny tosses will come only after the event. ‘The key concept is that of “independence”. I define a specification as a match between an event and an independently given pattern. Events that are both highly complex and specified (that is, that match an independently given pattern) indicate design.’ 