[Physicist]

Incidently, what do you think of the derivation of the crop circle from a Tetractys(which the author misspelled as Tetractys)?

I think human beings are more clever and skillful than you give them credit for.

That said, I think there could perhaps be an undiscovered natural phenomenon that causes some of the circular ones.

[LRS]

..or some really "hush hush" EARTHLY technology that someone gets a kick out of playing around with....

Btw- it just made me feel better to see someone saying a line that I have often used: I think human beings are more clever and skillful than you give them credit for

[FormerLurker]

That said, I think there could perhaps be an undiscovered natural phenomenon that causes some of the circular ones.

What do you think about the video linked below?

Crop Circle Forming