In corporate and government bureaucracies, the standard method for making a presentation is to talk about a list of points organized onto slides projected up on the wall. For many years, overhead projectors lit up transparencies, and slide projectors showed high-resolution 35mm slides. Now "slideware" computer programs for presentations are nearly everywhere. Early in the 21st century, several hundred million copies of Microsoft PowerPoint were turning out trillions of slides each year.
Alas, slideware often reduces the analytical quality of presentations. In particular, the popular PowerPoint templates (ready-made designs) usually weaken verbal and spatial reasoning, and almost always corrupt statistical analysis. What is the problem with PowerPoint? And how can we improve our presentations?
I am a sucker for stories in which seeds of cosmic revelation are found hidden inside everyday materials, especially when those materials are architectural in form.
In this case, it was “the imprint of a rare solar storm” that left traces in the rings of trees cut into logs by Vikings and used to build cabins 1,000 years ago on the Atlantic coast of Canada.
…While there is obviously more to say about the science behind this discovery—all of which you can read here—what interests me is simply the idea that astral events, cosmic storms, stellar weather, electromagnetic pulses from space, whatever you want to imagine, leave traces all around us. That in the depths of our buildings, in our walls and floors, even in the wooden dowels of mass-produced furniture, there can be evidence of immensely powerful and beautiful things, and I would like to remember to look for that again. It’s been a miserable couple of years.