Bill Ackman, the billionaire hedge fund manager, has spent the past month or so proudly demonstrating to the broader media-cultural elite the sort of activist chops that have underpinned his mostly brilliant investing career, and were particularly on display during some of his more high-profile corporate campaigns. Ever since the presidents of Harvard, Penn, and M.I.T. offered their cringeworthy assessments of antisemitic behavior on their campuses before Congress, four weeks ago, Ackman veritably drafted himself into a viral holy war against them. His rage was focused, in particular, at Harvard president Claudine Gay, who was defenestrated weeks after the hearings, ostensibly due to newly unearthed accusations of plagiarism and sloppy attribution in her dissertation. As Harvard Chabad’s Rabbi Hirschy Zarchi told the Times, “When the history of this moment is written, Bill will be a part of it.”