| 300 years is not deep time. | |
| It is: | |
| child → parent → grandparent → great-grandparent → living memory bridge | |
| This HIR/OAM pressure-event ledger maps historical anchors and simulation-derived checkpoints across a 300-year human chain. | |
| Not prophecy. | |
| Not prediction. | |
| A pressure map. | |
| What happens when degradation compounds? | |
| What changes when repair becomes operating code? | |
| Sₜ = AₜBₜ − Pₜ | |