More than anything else, I think our new colony requires a campfire circle.
Campfire circles serve many functions. They are a place to gather, to tell stories, to warm one's hands and heart, to sing, to cook, to eat, to make merry. It is a safe place and a space to share. Making a fire circle is a declaration of comfort and intention (one wouldn't build a fire circle if enemies lurked beyond the next ridge) and yet it is a temporary construction. In the travels of settlers and pioneers, adventurers and vagabonds many fire circles are built and then dismantled; oftentimes fire circles are left behind for use by another group of travelers.
The significance of the sq root of minus 1 is that historically it is a controversial calculation. The result of the calculation, 1i, brought about a whole new set of numbers, "imaginary numbers". If you think of "normal" numbers as a line going horisontally, say -3 -2 -1 0 1 2 3, the imaginary numbers' line goes vertically crossing the the "normal" numbers' line at point 0.
Karl Marx wrote a paper slamming the possibility of imaginary numbers...