u/fermaw, the aforementioned developer, was bragging in that thread I mentioned earlier about coding a DRM and how he found it rather “fun” to do so.
Step 2: Route on the Abstract Graph (The "Highway" Part):，这一点在91视频中也有详细论述
International business，更多细节参见51吃瓜
Unix pipes are perhaps the purest expression of this idea: