In this special international edition of the a16z Podcast, Mohsen Malayeri, co-founder of Avatech -- one of the more prominent startup accelerators in Iran among many (much like Y Combinator in the U.S.) -- talks to guest interviewer Christopher Schroeder (former entrepreneur, D.C. investor, and author of Startup Rising) about startups in Iran. What happens when you have a "mobile-first" startup ecosystem? Is this about trying to be yet another Silicon Valley (and if so, are we just substituting a form of technocracy for theocracy)? Silicon Valley isn't a religion, observes Malayeri, but entrepreneurship IS "a common language which has no border". This is the third installment in a special series on tech startups in Iran, part of a larger theme around global tech and how software -- including mobile -- is eating the world … and creating new opportunities within it.

One of the most active and fastest growing open source big data cluster computing projects is Apache Spark, which was originally developed at U.C. Berkeley's AMPLab and is now used by internet giants and other companies around the world. Including, as announced most recently, IBM. In this Q&A with Spark inventor Matei Zaharia -- also the CTO and co-founder of Databricks (and a professor at MIT) -- on the heels of the recent Spark Summit, we cover the difference between Hadoop MapReduce and Spark; what are the ingredients of a successful open source project; and the story of how Spark almost helped a friend win a million dollars.