221In fact, the Court has consistently held that the legality of an EU act cannot depend on retrospective assessments of its efficacy. Where the EU legislature is obliged to assess the future effects of rules to be adopted and those effects cannot be accurately foreseen, its assessment is open to criticism only if it appears manifestly incorrect in the light of the information available to it at the time of the adoption of the rules in question (see, inter alia, judgments of 12 July 2001, Jippes and Others, C‑189/01, EU:C:2001:420, paragraph 84, and of 9 June 2016, Pesce and Others, C‑78/16 and C‑79/16, EU:C:2016:428, paragraph 50).
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