http://blog.samaltman.com/ http://blog.samaltman.com/ I'd say three of his last four posts are more negative than he has been historically. I've also observed

http://blog.samaltman.com/ http://blog.samaltman.com/ I'd say three of his last four posts are more negative than he has been historically. I've also observed an increasing number of articles about properly calculating financials, unit economics, and hiring "killer sales teams." I don't know that it means anything, but there does seem to more of that kind of chatter - and not from the buzzfeed "Bubble!!!!!!" kind of sources that its been pouring from for years.