the.com/razor

the only tool that perfects you by subtraction, one careless second from drawing blood

means A sharp-edged tool used for shaving or cutting hair, prized for its keen blade.

from From Old French 'rasor,' from 'raser' meaning to scrape or shave, which traces back to Latin 'radere,' 'to scrape, scratch, or shave off' — the same root that gives us 'erase' (to scrape away) and 'abrasive.' So a razor is, quite literally, a scraper-away, named for what it removes rather than what it leaves behind.

Latin root
From radere, to scrape, same root as erase
Logic blade
Occam's razor cuts away needless assumptions, not whiskers
Steel edge
A sharp blade is thinner than a single cell
Gillette trick
Cheap razors sold to lock buyers into pricey blades
Old kit
Obsidian razors predate metal by thousands of years
for instance

occam's razor — philosophical principle by william of ockham (~1287-1347) stating simpler explanations are preferable

razor wire — barbed wire with sharp blades, widely deployed at borders and prisons since 1960s

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