Comment by procaryote

That does sound kinda minor? A worst-case scenario of a month or two without MRI machines or "aerospace engineering", whatever that means doesn't sound particularly scary. And that is making some pretty unrealistic assumptions like there is literally no helium, hospitals don't have private reserves that can last a few months and there are no replacement gasses or alternative options of any sort. And people can make do with limited fibre-optic or semiconductor manufacturing. We have crisises in various computer components every few years (I can think of HDD, RAM & GPU supply shocks over the last few years). Doesn't seem to be a major problem. A couple of months of disruption isn't a strategically interesting event.