As over seven million people watched Felix Baumgartner jump from the edge of Earth's atmosphere as part of the Red Bull Stratos mission, Youtube began to crawl. Since then it's struggled to stay functional, a very rare thing for the site which is used to massed traffic.
It's still usable at this point, half an hour or so after the event, but the sheer scale of the number of people watching the jump and its aftermath shows how the medium of watching world changing events has really turned a corner.
If you missed it, the press conference is set to begin shortly here.
KitGuru Says: We certainly know where we'll all be watching the first manned Mars mission.