So this art has been around for hundreds of years, and you would think something that's been around that long -- so restrictive, folding only -- everything that could be done has been done a long time ago.
所以这种艺术已经存在了数百年， 你可能会想如果某种东西 已经存在了这么久——如此有限制性，只能折叠—— 那么所有能做出的东西应该在很久以前就做出来了。