Why does Facebook recommend friends I've never even met?

Facebook's People You May Know algorithm is shrouded in mystery – even within the company itself. But its suggestions have often led to dark consequences

https://www.wired.co.uk/article/facebook-people-you-may-know-friend-suggestions?utm_campaign=the_download.unpaid.engagement&utm_source=hs_email&utm_medium=email&utm_content=73187520&_hsenc=p2ANqtz-8_TmQP_eIJSa_Gf6rLx8LDQ3j9f7KvgG9wfr9MkxPVEIixfJWyB8l3XqOKgSGs0aQ1mPeDyjnb6tWGncP4uhFXPlkPg2k87VDCnKW62T-rAhIyaME&_hsmi=73187520