"Mining HNT with Hotspots is done via radio technology, not expensive or wasteful GPUs. … Hotspots work together to form a new global wireless network and undertake ‘Proof-of-Coverage’."
"Tokens & Data Credits: The network uses two units of exchange: HNT, a new cryptocurrency, and Data Credits. Proof-of-Coverage: Our novel proof-of-work algorithm enables Hotspots to be rewarded trustlessly. Helium LongFi: LongFi combines the low-power, long-range LoRaWAN wireless protocol with the Helium Blockchain."
I get the impression is it's to create a cryptocurrency motivation for providing good network coverage. I don't get how it works but assume, like all things involving blockchain, there are externalities or unintended effects that make it not a good solution.
Helium is the quintessential example of Blockchain doing obvious social good when all traditional means of accomplishing the same goal had failed.
I've not really dug into the details as to what solutions Helium has, but it is quite interesting to see how this experiment will play out.
A much more realistic risk is sudden insolvency of a specific vendor (who are also responsible for maintaining firmware). There are about 30 approved vendors, growing monthly, but some have a larger share of the mining pool than others. The community is anticipating long term business risks and devising mechanisms to prevent a sudden loss of a large percentage of nodes due to business risk.
I firmly believe there is a significant flywheel developing here and I recently left my FAANG job to build in this ecosystem.