The same interference experiment has been tested by swapping the role of the frequencies.
This swapping only requires the addresses of the involved cells and not their respective old contents.
Their mutation process involves swapping two pieces in the ordered list.
Because of the nature of mathematical expressions, parsing order is important, and swapping order of some child nodes would result in a mathematically different expression.
It was also not uncommon to see some children swapping cards with their partners or sometimes skipping some items altogether.
Each action comes with its opposite, obtained by swapping the polarity.
Sometimes even electoral cooperation emerged among these candidates through swapping lower preferences.
However, there is a more economic inverse operation that undoes the swapping that happened during unification: simply swapping back.