A summary is provided of Ruyer's important contribution, also a reversal from some conclusions held in his secondary doctoral dissertation, about the limits inherent in technological progress, and an attempt is made to show the coherence of this position to Ruyer's metaphysics. Simondon's response is also presented, and subsequently analyzed especially as it culminates in a concept of concretizations. As Simondon indicated, and with a displacement in Ruyer's limitating framework on unconditional growth, we end up searching for what represents the (...) category of the ultimate for those two philosophers of the cyberworld. (shrink)