Hope the link works. It's a short read and I believe it's well worth it as it explains a lot of what has been discussed on HC since the results came out. There is also a link to the patent which is handy. I highlighted the bits in blue as it appears that a lot of folks are making this more complex than it needs to be.
Congrats to the clever chaps that came up with the idea and then carrying out the work needed to to get this commercialised. Top job fella's!
IHL Price at posting:
53.0¢ Sentiment: Buy Disclosure: Held