There was a machine scooting around Lake Monona, which in the dream was surrounded by concrete buildings and walkways and had become square and much smaller. The machine worked by sucking up a lot of water and then squirting it out the bottom like a rocket. It would then have to touch down again to collect more water.
YC and I wandered into a very fancy expensive hotel for some reason. We rode up the elevator (which was itself very fancy; I think there were purple lights and stuff) but were planning to leave before actually doing any business with them. But then they sat us down at a table and started feeding us fancy lunch. At this point YC had morphed into A-Day.