I have for some years held scientific papers with sole authorship at a disadvantage in terms of credibility. It’s not an uninformed prejudice; too often a click on a sole-authored paper with an interesting premise leads into a self-indulgent and clearly under-challenged series of suppositions. At their worst, solo-author papers suggest shades of Frankenstein – obsessive central figures fixated on an idea, but unable to find collaborators due to the irrationality or marginality of that idea; and…