Kipple：无人抵抗时，垃圾会逐渐占满世界

Kipple 是用过的火柴盒、口香糖纸、昨天的报纸，是已经失去用途却还留在那里的东西。没有人抵抗时，它仿佛会自行繁殖，挤走 nonkipple，最后让一间公寓乃至整个宇宙彻底 kipple-ized。

当年的回答把它接到热力学第三定律，这里需要校正。绝对 kippleization 更直接对应熵增和热寂，也就是热力学第二定律所描述的方向；第三定律讨论的是系统趋近绝对零度时熵的行为。Kipple 仍然只是小说中的形象，它让熵增变得可以在房间里看见，并不等同于物理学定义。

这种抵抗只能暂时发生在一个局部。Isidore 可以收拾自己的房间，让 kipple 与 nonkipple 达到短暂的 stasis，人一离开，积累又会继续。时间之矢在熵增加的方向上出现 说的是它背后的物理方向，《呼吸》 则用气压差的消失把同一件事写成另一种可感的世界。

当时的回答与书中原文：

What is kipple? - Isidore introduced Kipple as useless objects. When nobody's around, it reproduces itself. He further claimed that “Kipple drives out nonkipple and nobody beats kipple.” At first I thought it was an expression about dusts or the type of situation when places with no one living inside will begin the accretion of dirt and dust. Later I sensed a deeper meaning when Isidore talked about "it's a universal principle operating throughout the universe; the entire universe is moving toward a final state of total, absolute kippleization". Such statement reminds of me of the third law of thermodynamics that "the Entropy of a system approaches a constant value as its temperature approaches absolute zero". Kipple in a way indicates the entropic ending of the universe.

“Kipple is useless objects, like junk mail or match folders after you use the last match or gum wrappers or yesterday's homeopape. When nobody's around, kipple reproduces itself. For instance, if you go to bed leaving any kipple around your apartment, when you wake up the next morning there's twice as much of it. It always gets more and more." "I see." The girl regarded him uncertainly, not knowing whether to believe him. Not sure if he meant it seriously. "There's the First Law of Kipple," he said. "'Kipple drives out nonkipple.' Like Gresham's law about bad money. And in these apartments there's been nobody here to fight the kipple." "So it has taken over completely," the girl finished. She nodded. "Now I understand." "Your place, here," he said, "this apartment you've picked--it's too kipple-ized to live in. We can roll the kipple-factor back; we can do like I said, raid the other apts. But--" He broke off. "But what?" Isidore said, "We can't win." "Why not?" [...] "No one can win against kipple," he said, "except temporarily and maybe in one spot, like in my apartment I've sort of created a stasis between the pressure of kipple and nonkipple, for the time being. But eventually I'll die or go away, and then the kipple will again take over. It's a universal principle operating throughout the universe; the entire universe is moving toward a final state of total, absolute kippleization.”

时间之矢在熵增加的方向上出现 是它的物理学版本，而 Dick 把它写成了一件家务事：kipple 不需要谁去制造，只需要没有人收拾。 秩序要花力气，混乱不用。

摩擦力：行为会流向较省力的路径 是同一条定律在行为上的样子。减少诱惑暴露比反复抵抗更可靠 给的是应对办法，而它成立的理由正是 kipple 定律：与其一次次抵抗，不如降低它堆积的速度。

删除只是一种说法 是另一个领域里的同一件事：移除通常只发生在索引那一层，东西本身还在。 数字世界的 kipple 甚至不占地方，所以更没有人去收拾。 ——收入 读书笔记 · 一得

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