A story is not like a road to follow...it's more like a house. You go inside and stay there for a while, wandering back and forth and settling where you like and discovering how the room and corridors relate to each other, how the world outside is altered by being viewed from these windows.
In the realm of theoretical computer science, we often find that the most profound insights come from the simplest ideas.
I don’t think anything is unrealistic if you believe you can do it.
真相很少是纯粹的，也从来不是简单的。