As ever more aspects of earthly life are rendered quantifiable, harvested into clouds, funneled into algorithmic engines — leading to what has been called “planetary-scale computation” — these dreams of the vast creative and emancipatory possibilities of procedural reasoning processes endure. The initial trickles of Llull's and Leibniz’s arcane combinatorial fantasies have gradually given way to ubiquitous computational technologies, practices, and ideals which are interwoven into the fabric of our worlds — the broader consequences of which are still unfolding around us. The objects of their embryonic faith have become the living a priori of the digital age — providing the conditions of possibility for our experience and our reflection, our genres of deliberation, our forms of sociality, and our institutions of judgement — regardless of whether or not the machines operate in the ways that we imagine.