I think the physics seen by different clients might actually have quite a lot of variance. I made a catapult contraption similiar to the one Badspot posted in the video. Out of the hundreds of times I ran it, the brick completley missed the launch plate a small percentage of the time. So making a rube goldberg machine might work if you do it in a private server and post a video of it, but inviting bunches of people into your server to watch is a lot less effective.
I think people don't understand entirely what is meant by similiar. The physics calculations performed on every client is the same. If you put a bomb behind a window, all clients standing in front of the window will see the window fly toward them. But where the brick actually lands could wildly vary by quite large distances. Keep mind that because of slightly different launch angles, the brick's "position" (the brick doesn't really even exist according to the server) will become even more innacurate. Cool effects like snow and rockslides that don't need accuracy are fine. Save a projectile for your cannons. Build contraptions with the uderstanding that there is a good chance of failure, especially if it's complex or large. If the goal is to slide boxes down a slope for a factory or baggage claim, don't rely on gravity to do your work for you, (unless you want boxes of blockos to hilariously fall off the production line) launch them down using a fakekill event with impulse.
