On a disk, a similar approach might be to use a 2:1 or 3:1 forward error correction and then interleave data over multiple sectors. If you wipe out a sector, you'd still have the data from the other sectors to recover from.
This would, of course, be implemented best at a low level on the disk drive controller. At high throughput rates, the amount of computation required for this scheme is substantial. But you don't get something for nothing.
Not correct. Of the claims you listed, 1, 2, and 9 are independent claims and can stand alone. A competitive product that incorporated just the elements of, say, claim 9, would violate this patent. A prior art product that included the elements of claim 1 would invalidate claim 1 as an independent claim, but not necessarily the combinations of claim 1 and claim 13 or claim 1 and claim 14. Unless the dependent claims 13 and 14 were subsequently judged to be obvious in light of the earlier product that demonstrated claim 1.
To an aggressive patent prosecutor, "exactly" has nothing to do with it. The approach is "We've got this patent, see? Pay us the money or we'll sue until you're out of business".
John Carmack was understandably disappointed in losing the $500K but is taking the long view that Masten needs the money more than they do, and they've already moved on to new projects.
If you actually had to move Mercury to Mars in real (non-wormhole) space, then you'd have to figure out a trajectory where Venus and Earth were each at opposition when you were trying to sneak Mercury by those planets' orbital radius. And you'd want Mars to be waiting when you got out to that orbit, too. The motion of the four involved planets is out of synchrony enough that there's probably a suitable window every couple of decades... if only you had enough energy available to get Mercury moving and then stopped.
Some fitness metrics are hard to quantify based on a single exercise session, so it's worth it to have data for different days, doing different things.
Disclosure: I design and test fitness monitoring products for one of the companies mentioned by several of the posters. As a group we're some of the fittest nerds around.
Understanding is always the understanding of a smaller problem in relation to a bigger problem. -- P.D. Ouspensky