Be careful with that 'marketplace of ideas' metaphor
In many discussions that swirled around the Internet in the wake of Brendan Eich's resignation from Mozilla Corp. , someone invariably invoked the concept of the "marketplace of ideas"—just as in the market for physical goods or services, ideas themselves are brought to the "marketplace" of discussion, weighed on their merits, and adopted or discarded as this "market" dictates. If you hang positive traits like "freedom," "openness," and "meritocracy" on the market-metaphor, that's all the more reason to apply it to many different spheres. But it's worth noting some possibly uncomfortable implications.