and if you put something trivially true into the blank the implication seems logical, and the argument feels powerful. but simply putting a true claim at the end doesn't mean that everything before follows from this claim. (and even if they do the argument is not a total description of all the causal chains that influence the outcomes.)
of course it's hard to do a careful survey of the facts and weigh them and then deduce some likelihoods for possibilities. because some aspects are unprecedented (investment ferocity, AI results/progress) while others are very much precedented (collapse of investment bubbles, doomsayers' wrong predictions).