You're welcome. If it gets a couple more up-votes then it might make it to the front page for more people to get their brains stretched. I do also need to mod

You're welcome. If it gets a couple more up-votes then it might make it to the front page for more people to get their brains stretched. I do also need to modify the page to point out that hyper-cubes are also spikey, and the hyper-spheres in the corners are sort of in the spikes. Thanks to cperciva for the added insight.