In reverse chronological order: * Looking at 200,000 x 200,000 pixel images of cortex, where each pixel samples 3.75 nm square (you see the wires and the solde

In reverse chronological order: * Looking at 200,000 x 200,000 pixel images of cortex, where each pixel samples 3.75 nm square (you see the wires and the solder) * Sparsely expressing green fluorescent protein in pyramidal neurons of the hippocampus in a compound microscope * Drosophila larva wriggling around under epifluorescent illumination, expressing green fluorescent protein in all its neurons * Dictyostelium aggregation * When, teaching myself how to program in Pascal on my Dad's Fat Mac, I wrote a program that drew circles of increasing radius centered on the mouse * Thinking about how all we are is particles * Looking at redwood trees for the first time, in person