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And couldn’t they already do it over the internet?

Presumably they mean doctors can have an internet connection in remote places. But that’s not the same as being far from their patient.

Not in remote unwired terrain.

Examples for "wireless" (roadless) transport of physical packets

In remote areas, Starlink is probably a better bet than 5G to allow for low latency, high bandwidth use cases.

This arbitrary web site disagrees: 25ms vs 1ms latency.

but which really remote area gives you 5G with 1ms latency? If it's worth to have that infrastructure you might as well have fiber at home.