Because dream it (and with enough know-how, money, and luck), you can achieve it, this is a video of Youtuber Ideal Idea constructing an icosahedron (20-sided polygon) infinity mirror terrarium. How about that! No matter where you look it’s green with plant life! Me? I’m a huge fan of terrariums because I raise exotic plants, so I can really appreciate this. Am I suggesting I can appreciate it more than you? Yes. Does that make me better than you? Only in my own deluded mind.