> For image-based development to make sense, you really want to have long-lived interactive sessions. Not really — most people get into a dreadful mess when th

> For image-based development to make sense, you really want to have long-lived interactive sessions. Not really — most people get into a dreadful mess when they try to do that. For most people, it works better to version and export discrete change-sets. It makes sense to be able to save the state of your work, go to lunch, and pick up in exactly the same place when you come back. It makes sense to be able to save the state of your work, go home, and pick up in exactly the same place when you come back the next day.