Which is why the interviewer should ask specific and thoughtful questions about the project, so they can gauge the candidate's level of understanding. This concern could also be addressed by introducing a trial period.
> Why would I leave a stable well paying job
Well, why are you doing that in the first place? Maybe the new opportunity is worth it or the current one is so bad that it's worth it.
At least they’re honest about it. Unless you’ve got some kind of contract in place (or live somewhere where this is prohibited by law) your current employer could fire you in 2 weeks if they didn’t like your performance, too. They could do it this afternoon even.
