Hans Jonas’s idea of the “short arm” of predictive knowledge reminds us that we can’t always foresee the long-term impacts of new technologies. When it comes to shaping cyber-policy and infrastructure, this uncertainty calls for a careful, flexible approach. First, we should build policies that err on the side of caution ensuring security while allowing room to adjust as technology changes. Policies also need to be adaptable, with regular reviews to respond to new threats as they arise. Ethics matter, too; policies should safeguard privacy, promote transparency, and reflect democratic values, keeping them grounded in our shared principles even as the digital landscape shifts. Finally, ongoing research and open conversations with the public help bridge our knowledge gaps, allowing everyone to weigh in on risks and priorities. This approach helps us navigate uncertainty, aiming to build a cyber world that’s secure, ethical, and ready for the future.