Navies are also starting to deploy seamen on merchant ships, something hitherto rare unless the cargo was military.

ECONOMIST: Piracy and private enterprise

Valuation is very high today, which could handicap returns unless it becomes a rare outlier (a possibility given the story).

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Except, unless, whoever doing the distribution has something that is rare.

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According to Dr Bally, unless planetary systems form very quickly after a star is born, they are bound to be rare occurring around only about 5% of stars.

ECONOMIST: Planetary formation