We do actually. One area in which we make enormous progress is simulation. The entire perseverance trip was almost perfectly simulated in a simulator. It's pred

We do actually. One area in which we make enormous progress is simulation. The entire perseverance trip was almost perfectly simulated in a simulator. It's predecessor only partly. The JW launch and deploy steps are also simulated in a very detailed way. Many different (fault) scenarios are tested. I have good faith everything will go as planned.