Without blowing my own trumpet, I would contest that I am a lucky student. Studying at the LSE, an institution which consistently lands highly in global rankings, is of course a fantastic opportunity. Particularly in the midst of a hyper-competitive job market, and at a time when graduate prospects are on the low, a well-regarded university lifts a heavy burden off of one’s shoulders. Given this, it was with some discomfort that I read the 2025 English Social Mobility Index, published by the Higher Education Policy Institute, which ranks every English university on its ability to move students from disadvantaged backgrounds into high-skilled careers. LSE comes tenth. Imperial is eighth. King's is eleventh. The University of Bradford is first. Aston University is second. The University of Wolverhampton is third. On the surface, it looked as though something had gone awry. Every league table and every world ranking was, according to this report, incorrect. Members of the famous Golden Triangle such as UCL, or indeed Oxford or Cambridge, were unable to battle their way into the top ten. It was seemingly inexplicable. Except for the fact that when you look at what the index is actually measuring, the situation becomes significantly more explicable. The metric ranks institutions on how well they serve students from England's two most deprived national quintiles. This involves tracking access, continuation, and graduate outcomes specifically for that cohort. This is, of course, a worthy thing to measure. But it contains an obvious structural problem: universities like Bradford and Wolverhampton disproportionately take in students from more disadvantaged backgrounds. They are not being compared on equal terms with LSE or Imperial, whose intakes skew heavily toward students from more comfortable households. The universities in this ranking are thus being graded on intake composition. A university with more disadvantaged students will, mechanically, score better on a metric designed around disadvantaged students. It is the same flaw that haunts school league tables when applied naively. A school in a deprived constituency that achieves solid pass rates may be doing extraordinary work. But that does not mean its students are better placed in life than those leaving a well-resourced school with straight A*s. Both things can be simultaneously true, and blurring the distinction between value-added and absolute outcome produces conclusions that can misconstrue facts. This comes on top of the fact that the research fails to mention other factors as well. Research quality, academic environment, and the less quantifiable dimensions of what a university education is actually for all play a significant role in determining where a university should be placed in a table. Russell Group institutions dominate global research rankings for reasons that are not simplu reputational. The experience of studying in an internationally connected research environment, with access to leading academics in their fields, is not captured by a graduate salary metric adjusted for regional variation. None of this is to diminish what these top universities are doing. If these institutions are genuinely transforming life outcomes for students who would otherwise have been left behind by a system designed around those already well-positioned within it, that deserves recognition and serious attention. But universities judged exclusively through a single, distorted lens will always produce a single, distorted picture. It is precisely why the most credible ranking systems compile a number of different factors. They average across research output, teaching quality, graduate outcomes, student satisfaction, and social mobility performance, so that no one factor dominates and no single institutional strength inflates an overall position. The 2025 Social Mobility Index is a useful dataset. It should inform how we think about higher education, how we fund widening participation, and how we talk to prospective students about their choices. But as a ranking of universities, taken alone, it says less than it appears to. And for a student deciding where to spend three years and tens of thousands of pounds, appearances are not enough....