the.com/maiden voyage

The one trip where confidence and evidence are not yet on speaking terms.

means The first official outing of a ship (or, loosely, any new venture) before it has a track record to point to.

from From 'maiden' meaning unmarried, untested, first-of-its-kind — a sense that stretches back through Old English 'mægden' for girl or virgin. The voyage is 'maiden' the way a maiden speech or maiden flight is: it hasn't yet proven itself against the world. The phrase became fixed in nautical use as shipbuilders and press alike needed a term for that nervous, ceremonial first crossing — most famously, and darkly, tied to the Titanic's.

origin
Maiden meant untested, like an unmarried woman
famous flop
Titanic never finished hers
irony
The safest voyage gets the most nervous champagne
modern use
Now covers rockets, apps, and awkward first dates
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