Estonians once kept a season for the dead rather than a day — weeks in late autumn when the souls came home, food was left out, and nobody worked. It is among the first things a diaspora loses, because there is nothing in the North American calendar to hang it on. Valev Laube on hingedeaeg, what it actually asked of people, and why it is worth reconstructing.

The first generation carries it, the second half-carries it, the third has the recipes but not the hands. An American historian named this pattern in 1938 and it has held up uncomfortably well. Valev Laube on what actually survives across three generations, what is lost first, and why the third generation is not failing at something — it is doing something else.

Mushroom season has started in Estonia, and Valev Laube spent an afternoon being outclassed by someone who could not explain how she does it. On tacit knowledge, why the most valuable expertise resists being written down, what identification apps get dangerously wrong, and why a picking spot is worth less than the afternoons it takes to learn one.

In the middle of August, the darkness returns to the Baltic — and for a few weeks it arrives as a gift rather than a burden. Valev Laube on the Perseids, the science of light pollution, and why we keep defining the most useful things in our lives as absences.

A looping bee in an Estonian garden sent Valev Laube searching for the science of insect navigation—and toward a different way of understanding false starts, uncertain maps, and the paths that only appear aimless from the outside.