Been following this sort of thing for a while now and it always strikes me how the official explanations just sort of... trail off. "Temporary flight restriction, reason undisclosed." Right. That tells you nothing does it.
We get something similar over Dartmoor occasionally, not quite the same scale as Nevada obviously, but there's a few spots round here where you'll notice unusual activity and then suddenly find out a chunk of airspace got quietly restricted the same week. Coincidence maybe. Maybe not.
The Nevada stuff feels different though. Some of those zones are massive and they pop up with maybe 12 hours notice. I've been on a couple of sites that track the FAA notices and the pattern is hard to ignore once you start looking. Certain coordinates come up again and again.
Would love to hear from anyone who lives out that way and has actually driven near one of these restricted areas when its active. What did you see on the ground? Anything unusual, military vehicles, helicopters sitting on ranches, that sort of thing? Real eyewitness stuff is worth a hundred documents in my opinion.