[Zoneman]

I believe this is less about what one individual computer would do and more about what could happen to the millions of Windows users facing this problem in 25 hours.

[tedunangst]

Finding out what happens to one computer seems like a better start to informed speculation about millions of other computers than not finding out. Sure, it's no guarantee they're all the same, but we can more reasonably discuss whether the observed effects are plausibly widespread after observation...

[iancarroll]

I think the sentence was meant to imply MSFT might see this issue before the clock hits doomsday.

[taspeotis]

Microsoft has some experience with expired certificates [1].

[1] https://azure.microsoft.com/en-us/blog/windows-azure-service...