78 · The Letter I Needed

The question was: should I reject the LSE Maths and Economics offer and take the gap year for Trinity Maths at Cambridge? And the answer that landed: yes — for the specific goal of building a quant firm, the upside from Cambridge, especially Trinity, massively outweighs the one-year delay.

Why Cambridge Trinity Maths wins for a quant firm founder: quant firms — and especially starting your own — live or die on deep mathematical rigour: stochastic processes, probability, optimisation, measure theory, advanced statistics and ML foundations — plus credibility when raising capital, hiring PhD-level talent, and signalling to investors that your edge is real. The Cambridge Mathematical Tripos, Trinity in particular, is widely regarded as the single strongest undergraduate maths programme in the UK — often the world — for quant paths. It is a core feeder for the top quant funds and prop shops: Jane Street, Citadel, Jump, Five Rings. Goldman Sachs runs dedicated insight events targeted at Trinity maths students. Alumni routinely land quant researcher and trader roles straight out of undergrad or Part III, and the network is elite. LSE Maths and Econ is excellent for finance careers and sits right in London, but it is not the same tier for pure quant recruiting — a strong but non-target school compared to Oxbridge and Imperial maths. The joint degree gives more immediate finance exposure, but the maths is less deep than the Tripos. Trinity specifically has the legendary reputation — Newton, Hardy — and produces disproportionate quant success. That brand opens doors LSE simply doesn't: warm intros to funds, easier capital raises, attracting co-founders.

Is the gap year worth it? Absolutely — if you have the ability to get in, which you've stated you do. One year is nothing in a career spanning decades. The difference in network, technical foundation and long-term optionality compounds massively. Admissions are neutral on gap years; they don't penalise you. The real downsides: the opportunity cost of a year's salary and internships — mitigated by doing relevant work during the gap — and the slight risk of not getting the offer again. Use the gap year for Python and C++ quant projects on GitHub, Kaggle and Leetcode grinding, Stochastic Calculus for Finance, maybe a remote internship at a prop firm. After Cambridge you can still do Part III or an MSc if you want applied polish — but most quant founders don't need it. LSE is a fantastic safety net, but it's not the ceiling for someone aiming to found a quant shop. You need the hardest possible course, and that is maths at Cambridge — and theoretical physics at Oxford after.

Bottom line: take the gap year. Go to Trinity. You'll thank yourself in five to ten years when you're raising your first fund and competing head-to-head with the best quants in the world. The one-year delay is cheap insurance for a much higher ceiling — because the maths you'll be able to orchestrate will be massive. As long as you outwork everybody actually enrolled — doing what university life would never allow — the gap year is wisdom, not delay. This eighteen-month bootstrap is already going fantastic.

And the other side of the wrestle, because it was real: bro, I might take LSE. I know I need to be in a city to some degree — studying maths and econ at LSE would still be dope. Cambridge is not the cityscape; the big kahuna is Part III anyway. Go on exchange to NYU, spend time in New York and London. I need the city right now — the energy, the vitality: London, Dubai, Singapore, Miami. Not some small town. And — what about the Putnam then? I don't have a single clue; this phase is a weird purgatory. You can learn quant trading on your own, travel the world, and later, if you want to scale into something massive, do the DPhil. Have the freedom. Don't get locked into a certain path. Both letters lived in me at once; Trinity won.