Does this take into account other types of compensation like stock options? I've accepted a position as an H1-B and the salary I was offered is over 10% lower than what is listed in that data ... would it be prudent to bring it up?
what about handmade crafts? there will still (always?) be a market for high-quality goods made by a person, even if machine made goods are of the same quality.
I think back-of-the-envelope will at least get you within an order of magnitude of the real numbers, which gives you a reasonable range to make assumptions.
If you knew a target file's hash, it might be possible to modify the dropbox client to report that file as added, then dropbox would download that file onto your computer. Of course, 10^77 possible hashes makes it unlikely.
What would be the price tag for the construction of one of these datacenters? Also, how much more expensive (in operating costs) is a, say, 1.1 PUE datacenter compared to a 1.07 PUE?