At what point did civilization shut down for two months to upgrade the internet?

Dial-up to gigabit in 30 years. The internet never went offline for two months to do it. That's the bar for a rebuild. If customers depend on your service, you can't change the interface and expect them to go read the docs. Nobody reads the docs. The upgrade has to happen underneath them. Ep.01 of the Concept To Cloud podcast. Full episode at the link in bio. #productdevelopment #softwarerebuild #legacysystems #cto #productmanagement