本篇随笔涉及 IT 行业（电视的交互、桌面软件的交互、寄生软件），人文与社会（帕累托前沿、想象与现实的差距）。 The jottings refer to IT industry (interaction with a TV, user interaction of desktop softwares, parasitic softwares), culture & society (Pareto front, when fantasy meets reality).