The idea behind BitVM.

[Zonyebuchi]

BitVM as a new innovation in it's ecosystem is a way of giving more and optimum enhancement to the performance and usability of Bitcoin.
In other words, instead of of Bitcoin's chain to carry out out all complex arrangements, BitVM can be used offchain then Bitcoin will then be use to verify the outcome.
Importance fact... This algorithm could help Bitcoin go beyond simple holding value hence, making it more programmable without altering the fundamental base.

[Danish Ali]

Interesting, but I believe this thread made it seem not as hard as it is with bitVM.

The "compute offchain, verify onchain" idea is nice, but it can have a lot of work involved. One instance of BitVM will need thousands of potential transactions that are pre-signed by both parties. One of the largest actual obstacles right now is the setup cost; one couldn't simply switch to that setup as part of any calculation.

In addition, when a challenge occurs the whole calculation is not executed onchain. Just a small bit is being looked at, basically a Merkle proof to specify where your problem lies. Which is the clever section of the design, however, it is rather using Bitcoin as a judge for one disputed step.

There is one more thing to observe: The innovation is referred to the ‘Bitcoin programmability' and that's quite exaggerated. For now, the apps on BitVM are mainly "trust minimised bridges" that let Bitcoin's transfers happen to a BitVM rollup or sidechain without a 100% trusted keeper. It is NOT a general purpose smart contract product, as some believe. As for all the above early versions or testnet versions, correct me if I am wrong, there isn't a fully production ready BitVM bridge up and running on the mainnet yet. Although BitVM2 features enhancements over BitVM1, this too is undergoing growth.

Sure it's a real innovation but, I'd hold off on calling it a game-changer until we see it running securely at scale.