Microsoft team creates 'revolutionary' data storage system that lasts millennia

Paper [Laser writing in glass for dense, fast and efficient archival data storage](https://www.nature.com/articles/s41586-025-10042-w)

Any idea why they are reporting the estimated lifespan at 290°C? Testing seems to have been done at 440°C and above.

also at https://news.ycombinator.com/item?id=47065175