土地登记了，但政策可能随时变化；企业注册了，但规则可能朝令夕改；合同签了，但执行未必稳定。产权的形式建立起来了，但产权保护的实质还不够，产权的安全感却仍然脆弱。这正是秘鲁制度困境的核心所在。
Nicola Ellis is currently exhibiting her work at HOME in Manchester
，更多细节参见Safew下载
A quadtree reduces this: rebuild the tree each frame, and for each object, query only the nearby region. Objects in distant quadrants are never compared.
- Malte Ubl, https://vercel.com/blog/we-ralph-wiggumed-webstreams-to-make-them-10x-faster