Similarly to the `<div hidden>` example above, it's a tradeoff. A speculative fetch is just that: speculative. It might not always be correct, but on balance, i

Similarly to the `<div hidden>` example above, it's a tradeoff. A speculative fetch is just that: speculative. It might not always be correct, but on balance, it's likely to improve the user's experience. I think it's pretty unlikely we'd see this kind of speculative preloading for fetch though, at least initially. More likely, it's done for imports, and then some number of months or years down the line some engineer or PM has the bright idea to measure how much the average web page could be improved by doing speculative preloading for fetch, and then if the measurements are favorable and the technical tradeoffs are manageable, it happens.