Around computers it is difficult to find the correct unit of time to measure progress. Some cathedrals took a century to complete. Can you imagine the grandeur and scope of a program that would take as long?

本当の勇気とは、怖いことを知っていながら、それでも前に進むことだ。

历史不仅是发生的事，更是我们记住的事以及记住的方式。