> This is also close to the lowest altitude for unregulated airspace I always find it fascinating how innovation gravitates to unregulated places. I think abou

> This is also close to the lowest altitude for unregulated airspace I always find it fascinating how innovation gravitates to unregulated places. I think about radio spectrum - look at the incredible value we get from the 2.4ghz band - for me personally it feels like that small piece of spectrum gives me more than all the rest of the spectrum put together. And similarly here - what is the primary constraint both Google and Facebook are working with? Just to get out of regulated air space. The problems of trying to deal with regulation are worse than all the technical issues put together. And I suspect that just like with unlicensed radio spectrum, it will work out ok and we'll end up getting far more value from unregulated air space just like we do from unlicensed radio spectrum.