I once read about the dual braking systems used in modern aircraft. One is hydraulic. The other runs independently on a different power source. The design exists so that if one fails, the other can still land the plane.
What is less discussed is the quiet cost of that redundancy. Both systems must stay ready enough to matter. A problem in one can still leave the aircraft degraded even when the other is working perfectly. Extra safety is real, but it is purchased with another set of components that must coordinate under stress.
That idea returned when I looked at Babylon.
Babylon did not replace its native validator set with Bitcoin. It kept the original CometBFT validators and attached a second quorum of Finality Providers backed by BTC stake. One group continues to produce and confirm blocks. The other adds Bitcoin backed finality afterward.
Economic security becomes stronger. Yet the system now depends on two different operator groups remaining live enough for the full process to finish. Blocks can keep being produced while finality stalls. The reverse is also true.
Bitcoin’s economic weight did not eliminate coordination risk. It changed the nature of the risk, turning one security boundary into two, then requiring both to stay functional when pressure appears.
That may still be a reasonable trade. It is simply not free security layered cleanly on top.
@BabylonLabs_io $BABY #baby
What do you think about the cost of that dual dependence?