Vitalik Buterin’s mathematical model shows that projects should skip Stage 0 and start directly at Stage 1, where security becomes stronger once the proof system reaches a certain reliability threshold

Quotes that support claims

The data advocates for at least Stage 1 deployment, especially as proof systems mature. Still, Buterin warns against prematurely shifting to Stage 2 if it detracts from strengthening the underlying cryptographic mechanisms.

These two arguments both imply stage 1 and stage 2 are both even more attractive than the chart shows. If you take the math seriously, stage 0 is pretty much never justified: you should launch at least straight into stage 1. The main argument that I hear against is: if a critical bug happens, it may be too hard to get 6 of 8 security council members to sign fast enough to fix it. But there is an easy way around this: give any single security council member the permission to delay withdrawals by 1 or 2 weeks, giving everyone else enough time to act.