Apollo Guidance Computer Needs 10.3 Seconds Per Bitcoin Hash, 13M Universe Ages Per Block

The item is less about mining economics than about the widening gap between legacy computing and modern hashpower: a machine that once guided humans to the Moon is now functionally inert against a network measured in exahashes. It matters mainly as a scale reference for how industrial Bitcoin mining has become, and as a reminder that difficulty adjusts to keep block discovery roughly constant regardless of how weak any single participant is. The open question is whether such retro-computing exercises retain any signalling value as hashrate and difficulty continue to climb.