-Sure it can. Please provide the least shred of even vaguely credible evidence that “the military” would have any reason whatsoever to wander about the countryside squishing crops.
If some “circles” are, for some wildly implausible reason, made by some bit of supersecret military hardware, why do they look precisely the same as those made by a kid squashing the grass with a rope and a board?
-Oh, but you do? Please.
I’m sure you love to believe there are dozens of dark, secret conspiracies and hidden cabals out there, all of whom are keeping huge secrets from the population at large.
Sorry, that don’t happen in astronomy. There’s hundreds of entirely seperate observatories and a thousand seperate groups all of whom are in a mild form of low-level conflict- each team (hell, each person) wants to be THE one to discover something important: a near-miss asteroid, perhaps, or “better” yet- for want of a better phrase- one that would impact the earth.
Being the first to spot an alien spacecraft or being the first to detect valid signs of an alien civilization would be a HUGE boost to not only that person (additional funding, grants, assistants, more 'scope time, peer-reviewed journals, an offer of professorship, a seat on the board, book deals, you name it) but to whichever group or team he or she is on (again, more university funding, additional resources, increased media attention, grants and donations, even increased enrollment for that university, etc and so on.)
THAT is the way the world actually works, not “Hey, this is big! Let’s hide it and sit on this world-altering information so that later we can… I dunno, use it to make crop circles, or something.”
-And you’ve been silly for twenty posts now.
My point is that all the ideograms are variations of a “circle”, a pattern very easy for some kids with ropes and boards to do, as they simply put one kid in the center as the “point of the compass” and the rest just swing in the arc created by a rope anchored at that “point”.
The same kids trying to make, say, an equilateral triangle, instead of just using one rope and a couple of boards, would then have to get out measuring tapes or a set of good GPS handhelds, and would have to tromp around in the wheat more, leaving more footprints and whatnot.
The further point was that the circlesare typically simple- one or two or three circles, sometimes with a few smaller circles on the side, etc. If they were made by some supersecret military plane/spacecraft/ramjet/hover-bucket, why the variation in patterns? Hell, for that matter, why make pattersn at all? Doesn’t that kind of blow the whole “supersecret whatever” idea?
If they were made by aliens, why simple pictograms? How are we supposed to “interpret” two circles connected with a line? Is it a barbell? Do we need to exercise more? If the “aliens” are trying to actually communicate… well, again, they’d be using radio, or audio or whatever- to say nothing of the idea they’d be doing so secretly, in cloaked, undetectable ships- but if they were trying to communicate, they’d be using far more complex designs.
-We can see the Universe only through our own eyes. If we happened across an intelligent alien race, we would undoubtedly attempt to communicate.
Your insinuation, assuming “authentic” ones- which you still haven’t defined- are made by aliens and not “the military”, is that the circles are merely graffitti. The interstellar equivalent of “Xquatl Was Here”, or perhaps “I Claim This World- Terminus”.
-I see. Keep that tinfoil handy, mate.
In any case, the point you missed here is that “something” is forming these circles and pictograms. You’ve insinuated two possible scenarios- “the military” and perhaps space aliens.
If the aliens have actually come here- seems necessary in order to have physically squashed the grass- then the need for radio to traverse interstellar distances is wholly moot. Why not park in orbit and begin broadcasting? If they’ve come to the surface, why not land in some prominent location and then start broadcasting?
One assumes you can relate a great deal more data with a modulated radio frequency than one can with a circle tamped into a crop field.
But hey, if it soothes your mind to think “the military” has nothing better to do than zip around in either stolen alien technology or multibillion-dollar fully-stealthed supersecret ramjet/hoverplanes and use 'em to make patterns in fields, more power to ya.
But trying to argue that point on a board dedicated to fighting ignorance, as opposed to promulgating it, is probably not your best bet.