Extensive New Yorker article on whether Oumuamua was an alien space probe

“By far the most spectacular account of 1I/2017 U1 came from Avi Loeb, a Harvard astrophysicist. ‘Oumuamua didn’t behave as an interstellar object would be expected to, Loeb argued, because it wasn’t one. It was the handiwork of an alien civilization.”