“Gravity is worth asking about.”

I’ve enjoyed John Gruber’s posts about ads appearing on an increasing number of Apple surfaces: the App Store, Apple News, and – soon, perhaps – Apple Maps. (Just for reference, here’s an example of such an ad.) In a post earlier this week, Gruber likened ads to stickers on laptops, and shared a fun Steve Jobs story: That’s what those stickers on PCs are: they’re ads. Intel pays for the “Intel Inside” stickers that booger up PC laptop palm rests. Longtime readers will recall that back in August 2007, Apple held a Town Hall event to introduce new iMacs and some iLife and iWork software updates. In a post-event Q&A (imagine that), Bob Keefe of Cox Newspapers asked “Can you say why you all are not participating in the Intel Inside program, putting the stickers on your new or previous Macs?” This question was so absurd from the perspective of those who covered Apple closely that it prompted outright laughter. […] The 2007 exchange went as follows: Keefe: Why are you not participating in…