In /r/crypto there's a monthly wish list thread where people can wish for articles (or other stuff) from the community. If there was such a thing for HN I would wish for this: A technical article with perspectives from people actual in-the-know about 5G, describing how/if 5G is actually going to enable things like this in a way not possible with 4G.

I can't understand why IoT would benefit from 5G, it can't be the lower latency can it? Is the energy consumption lower?

To me, 5G just feels like an enormous hype train.