Year 10 Day 31

Next time I have a bright idea I’m going to figure out the energy required before I decide to go with it.

It takes energy to control energy. Not as much—an exchange teleport, where I’m swapping two things of equal mass, doesn’t take anything like the actual potential energies involved. But it does take something. Quite a lot, when I’m exchanging that much mass over that much distance. Rainbow has been astounded at the amount I’ve had to eat.

The place I had in mind as my ice field seemed even better on a second look. It was once a pond, but the water cut through a ridge of gravel and cinders to drain to the lake. The drainage channel is conveniently located, and can easily be bridged by a couple of palm trunks. I had to abandon the tabular iceberg idea because of the salt near the base of the drift ice, but a chunk of land ice from the island, upwind of the volcano (which is still erupting) seemed a reasonable substitute.

What I had not calculated in advance was the sheer mass of ice it would take to replace the mass of silt I removed from the former pond bed.

I wound up doing exchange teleports of partial ice masses and silt over two days, with frequent breaks to eat. About half of the People had arrived by the time I added the top layer of snow and staggered back to my home to demand more food from Rainbow.