@DailyJLee Anyway, the best I've seen is this, which is a model, which gets dismissed as "It's a model, that's bullshit" but it does align with empirical spread rates.
https://www.nature.com/article...
@不管怎样，我见过的最好的是这个，这是一个模型，它被认为“这是一个模型，那是胡说八道”，但它与经验利差率一致。
https://www.nature.com/article...