Comment by hnthrow90348765

This is a design/requirements problem to me, not a language one. You can handle no internet connection in just about every language, but you probably won't if you don't say something about needing to do that, and plan how to store/access the data in that failed state.

If the stakes were higher (say, brain surgery to get some study results), you'd want even more planning around storage/access so that your disk doesn't die and the server is unreachable at the same time and lose the only copy. Letting a developer come up with this on their own is a footgun with an incredibly sensitive trigger.

The other reason it's design/requirements is so everyone knows and it's not just Tim the developer coming up with his own idea and not really detailing it to anyone, and then Tim gets hit by a bus and someone has to go figure out what he did (or more likely, fired because they thought AI could do all of this for them).