RPGMemes

I know that I can, based on experience. It is often an outline and can be revised, but having that as a starting point makes rolling with the unexpected easy enough.

Like having a route and planning on how to handle unexpected roadwork or changes in train schedules. It isn't necessary to plan every detail or how it will pan out, just major things that need to be handled until the end of the session and there is time to hash out the details before the next.