One worrying aspect of this sort of thing is that it obligates them to go after really big revenue potential as an end game.<p>We don&#x27;t know much about where online education is going yet,  how it works. It may be the case that a MOOC could change the way education works fundamentally and still have revenue that does not justify a valuation like this.<p>The field is still young and feels like the potential is much bigger than the current state.  We don&#x27;t know what achieving that potential looks like.  I hope they aren&#x27;t taking important options off the table.