Of course including those that have been made by so-called crop circle makers, because in the brains of these individuals would have some intelligence never been found, even if someone was really intensively looking for, mining and prospecting there.
Siyempre kabilang ang mga na nagawa sa pamamagitan ng tinatawag na gumagawa ng crop bilog, dahil sa mga talino ng mga indibidwal na nais na magkaroon ng katalinuhan ilang hindi kailanman ay natagpuan, kahit na kapag ang isang tao ay talagang intensively hinahanap, pagmimina at prospecting doon.