Thanks. I've had enough problems getting my own code working a few months later, never mind anyone else's, which is partly where this comes from. But the over

Thanks. I've had enough problems getting my own code working a few months later, never mind anyone else's, which is partly where this comes from. But the overall motivation is the same: how can we judge scientific work if we can't examine it statically (open source) and dynamically (recomputation)?