First, it's not 2.2GHz (that's the maximum turbo frequency), it's rated speed is less than 1GHz (0.9GHz, according to TFA). The MacBooks use 1.1GHz and 1.2GHz Broadwell processors (turbo boost to 2.4GHz and 2.6GHz). The Skylake processors are probably both faster and lower power.
Second, it's actually a pretty nice machine (assuming that you can stand Windows): anybody complaining about the new MacBook with only a single USB C port should be pretty happy with this machine, which comes with a full complement of ports. And the price is certainly pretty good (even the high resolution model is about half the price of the new MacBook).
Third, the black finish looks really nice: I wish Apple would make nice black kit like that again.
I wonder if you can get OS X running on this somehow.
The evidence is the observed orbital properties of distant Kuiper belt objects. The computer model is just used to validate possible explanations. This is almost exactly how Neptune and Uranus were discovered: by observing their effects on the orbits of the then-known planets.
The summary says "online sales" which means that we are probably NOT talking about "shipped" rather than "sold" numbers. However, these are numbers for October, which is all before the new iPads shipped (including the iPad Pro) so we are probably seeing some depression of iPad sales that will catch up in the November numbers (or not: if MS can maintain these sales numbers in November and December, then this would be quite interesting).
>> The problem is that this is never done.
> The reason is that many Software Director positions are now filled with technically clueless people
The cost of components (not to mention the retail price) is so high that assembly labor is almost in the noise, just like any other big ticket item. They may even be saving money on the deal, if you factor in shipping costs (which isn't true of the Mac Pro).
In every non-trivial program there is at least one bug.