# 想像我們要製作一尊塑像,從一堆黏土開始。我們先把一坨原料放在基座上(這坨原料包括當晚睡覺前已經存在的自傳式記憶,新舊都有),然後花較長時間去除多餘的材料(長時間的非快速動眼睡眠),接著對某些細節做一點初步加強(短暫的快速動眼期)——《為什麼要睡覺?》
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