Today I revisited the Trustless Bitcoin Vaults (TBV) documentation after completing another round of testing on the public testnet.

Two numbers sitting side by side made me stop.

A Vault only takes about 6-10 minutes to complete its off-chain coordination once it becomes eligible. Yet the entire peg-in process still takes around 2 hours because it must wait for 12 Bitcoin Signet block confirmations. (Babylon Labs Documentation)

At first, I assumed this was simply the cost of a slow network.

If the coordination phase only takes a few minutes, why not let users borrow immediately and finish Bitcoin confirmation afterward? The user experience would be much smoother. I went back to the documentation with exactly that assumption in mind.

What I had overlooked was that these two waiting periods are protecting two completely different types of risk.

The 6–10 minute window exists so the Vault Provider, Application Vault Keeper, and Universal Challenger can prepare and validate the entire pre-signed transaction graph. The 12 Bitcoin block confirmations, however, are not protecting the participants. They are protecting the collateral itself by allowing the Vault to become active only after Bitcoin has independently confirmed that the peg-in is sufficiently secure. (Babylon Labs Documentation)

That was the moment I realized I had been measuring performance the wrong way.

I kept looking at the total waiting time, while the protocol deliberately separates it into two independent layers: the time required for humans to coordinate and the time required for Bitcoin to reach final confirmation. The first can be optimized with better software and infrastructure. The second can hardly be shortened if Bitcoin is to remain the ultimate source of truth.

That detail completely changed how I think about BitcoinFi.

We often ask:

“How fast is this protocol?”

Perhaps the better question is:

“How much of the waiting time is genuine system latency, and how much is the price of refusing to replace Bitcoin with a new trust assumption?”

@BabylonLabs_io $ON $BABY #baby