The "8 hours of sleep" rule is based on ZERO evidence. Ancient humans slept in two distinct phases, not one long stretch. Here's the shocking truth about how you should really be sleeping: https://t.co/ayBYYsKta6

Engineering Sleep Advanced sleep engineering: sleeping and waking at will, 4 hours of sleep that feels like 8 hours, always in perfect mental & physical condition. Studying our most efficient sleepers will bring us one step closer to advanced sleep engineering (link below)

With artificial light, we believe we defeat the sleep-wake cycle; with climate control, the seasonal cycle; with refrigeration, the agricultural cycle; and with high-tech medicine, the rest-recovery cycle. Triumphal linearism has shaped the very style of Western and (especially) American civilization. Before, when cyclical time reigned, people... See more