On: Kepler's 400-year-old sunspot sketches helped solv...

[chmod775]

> We have analog records from thousands of years ago, and we still have the technology to use them. I have digital formats from ~25 years ago that can no longer be read.

I have physical records from 2 years ago that can no longer be read.

[stouset → chmod775]

I explicitly called out that digital records having questionable archival properties doesn’t magically make physical records durable by default.