The left/right split on the question who invented the internet.

1. President Obama — in his notorious "you didn't build that" riff — said "The Internet didn't get invented on its own. Government research created the Internet so that all companies could make money off the Internet."

2. Gordon Crovitz — in the WSJ — said that's a myth: "The truth is a more interesting story about how innovation happens—and about how hard it is to build successful technology companies even once the government gets out of the way."

3. Farhad Manjoo — in Slate — says: "Crovitz’s entire yarn is almost hysterically false. He gets basic history wrong, he gets the Internet’s defining technologies wrong, and, most importantly, he misses the important interplay between public and private funds that has been necessary for all great modern technological advances."