Just text Stuart to let him know you're coming!
Let him know if you want to do mushrooms on Friday (and plan to arrive early).
RSVPing late means you are sleeping on the couch or floor!
Cool people have opinions about the world! And even cooler people make amusing/interesting powerpoints and present them to the crew. Target 5-10 minutes ish, visual aids optional - heck, participation optional! Just have fun with it :)