It's also interesting how infrequently this is actually enforced by employers. Outside of extreme cases (like the current waymo/uber litigation) I've never heard of it being enforced -- even when it's pretty obvious that IP was transferred (e.g., foursquare / dodgeball). I feel like it's in there because it always has been. I thought about removing it for my new business, but I'm worried about diligence issues if I end up raising more money or selling. At GitHub's scale that's less of a concern.