Worth investigating. No change to consensus, no opcodes needed. Will it work? If Bitcoin is to be the internet of information and value, eventually all worthwhile (and junk) projects will get built on top of it.  The alts that need real security and prove valuable will migrate to Bitcoin. If BitVM works as advertised, it's progress.  The market will sort out the future Pets.com.  Bitcoin Layer 1 will continue to operate with or without BitVM.