the.com/green light

Permission dressed as a color, so no one has to say yes out loud.

means Authorization to proceed with something, often awaited anxiously before starting a project, deal, or plan.

from Straight from traffic signals: green has meant 'go' since early rail and road signaling systems adopted the color (chosen partly because red, with its long wavelength, was already claimed for 'stop' and visible furthest in fog). The literal light at the intersection became, by the early-to-mid 1900s, a stand-in for any go-ahead — a producer greenlights a film, a boss greenlights a budget — the metaphor borrowing the signal's clean, wordless authority.

traffic origin
railroads used it first, for go, before cars existed
gatsby symbol
fitzgerald used it to mean hope just out of reach
hollywood meaning
studio approval that turns a script into a budget
color choice
green stands out fastest to the human eye at distance
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