Interesting article, be helpful if there was a breakdown of why the author thinks people are dying. Seems from the article like there are three problems:

- SAR teams knowing where people are - SPOT/inReach, PLB, Recco (at a push)

- SAR teams knowing that someone is in trouble: SPOT/inReach, PLB, VHF, Satphone

- Members of a climbing team knowing where each other are: SPOT/inReach, VHF, Satphone, Meshtastic (or something of that style)

I imagine that SAR is really really hard on Everest even if you do know where the casualty is so knowing where other members of a climbing team are might be the most important one?