Comment by immibis

Your browser gets bounced between different sites that don't have the full picture because the process is optimized for the explainability of each part of the system instead of the performance of the whole system. It's something like: the website says "go to Microsoft to get signed in" and then microsoft.com says "actually Microsoft logins are now Live logins so go to login.live.com" and then that says "oh hey, you are already authorized, let me return this result back to Microsoft.com" which then says "oh hey, here's your result, pass it to yourwebsite.com". Something like that. Not exactly that. The point is: nobody has responsibility for the system. People only have responsibility for parts and Conway's Law applies.