How much of the paper was written with AI?

the models, proofs and writing are mine (with some AI assistance for proofreading/formatting). AI was mostly used in the visualization and the rerunning of multiple scenarios of the numerical examples

A risk in this situation is that in names that are dominated by passive flows there is a pro-cyclical effect where because the name is valued in terms of the overall index but is also part of said index that you end up with a positive feedback loop - which will eventually be arrested by speculators.

Indeed, we have just been through arguably the largest (nominal) drawdown in the history of fixed income.

The cost of insurance is carry e.g. when you buy an option you are paying for the convexity with time decay. It is quite expensive.

It is worth saying however that part of tail hedging is that the payoff is worth a lot more when everything else has tanked, so e.g. even if you (say) get 10% on your puts when the wider portfolio is still down 40% (made up numbers), you can deploy that capital at probably quite a high expected return.

This is actually kind of happening! (In a way)

There are, at this point, quite a few git-successors that either basically or literally use gits object model - git-butler, jujutsu, sapling (iirc). It's at worst good-enough.

Yes I assumed datafusion when I heard that phrase.

Would be interested in strategic value add versus cedardb (although cedar is closed source in a way that at the moment I think may kill it)

C# is a pretty bad language when you take away the stack it sits atop of. I do mostly like the async but developers put up with a lot of shit to e.g. use the msft networking stack and containers

I feel the opposite. It is one of the genuinely competent languages out there, if you're the kind of person that isn't upset about it being a "kitchen sink". Instead, I feel like the ecosystem, community and reputation hold it back. There are nowhere as many useful and popular packages to reach for as Python for example. Unity3D always lags behind in runtime and language version and had amazingly bad package management -- this further hamstrung C#, because the language is never used in a vacuum.

Care to elaborate on what would make C# a bad language?

It's a product of an era of OOP when the idea of a program fitting in a developers head was a dangerous reactionary idea.

They have in fairness fixed a lot of the worst aspects of this by adding basically a second language to it but e.g. I massively prefer writing F# if purely because if I want to do something I can just to it rather than first implementing public static DoThing : IDoThing

  public static DoThing : IDoThing

Yeah... Right.

In other words, C# is a bad language because you don't like it?

What does prevent you from "just do it" in C# without extra classes and interfaces?

The noun to verb ratio is too high. This is a normative statement but it's one I'm willing to make that you apparently can't detect.

It doesn't feel nice to say but hearing from people I know who work in politics just how much the prospect of having to disclose something changes behaviour (in what people say but also where they say it) I'd be in favour of some moves like this in Britain.

There is obviously a very good reason for transparency but I think the full extent of FOI is basically like asking if someone is wearing trousers on a call

Almost definitely Id think - I think we have to treat it something like power tools / chairs and a gym.

AI makes me massively more productive as a quant, and more creative in the sense that it can often find calculations I don't know how to start, BUT the flip side of that is that I can also feel my skills atrophy and as such am trying to make sure I do maths exercises and so on. I don't worry about programming skills because programming isn't about code.