[foobaw]

This is taking a longer time than expected for a company like Facebook - must be serious where a rollback isn't possible or trivial.

[chasd00]

from what i understand (take with grain of salt) remote access to the routers affected is down. So they need to be physically plugged in to address the issue. hence some of the other "scrambling private jets" comments referring to getting the right people physically plugged in to the right routers.

[derwiki]

I wonder if everyone refreshing the sites/apps trying to get it to load is contributing to the problem

[XCSme]

Probably not, from other comments it looks like there was a wrong configuration rolled out, and now they are logistically struggling to get access to fix them.