This experiment was designed exclusively for a screen resolution of 1280x1024 pixels and optimized for Chrome on Windows 7 and Safari 8.0.8 on Mac OS 10.10. While other resolutions will probably work, different parts of the screen might be completely hidden from you. On a laptop zooming out is definitely called for, but that need not necessarily solve all problems.
Explanations about how this demonstration differs from the live experiment can be found in boxes such as this one.
In the lab this experiment was running on a customized PHP framework. Wherever subjects interacted with each other or elements were randomized, the necessary dynamic information was replaced with static examples for the purpose of this demonstration.