For implementers, there's no Transformer protocol with start(), transform(), flush() methods and controller coordination passed into a TransformStream class that has its own hidden state machine and buffering mechanisms. Transforms are just functions or simple objects: far simpler to implement and test.
But no one is ready to say when hundreds of new missile silos, dug from the windswept Great Plains, will be finished, how much they cost, or, for that matter, how many nuclear warheads each Sentinel missile could actually carry.
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At the moment each hand sells for $12,000 (£8,800), but "we will be making it more affordable in the future," says Pan.
Estimated shortcuts: ~91 million (a manageable number for global routing)