A 10x increase in the user base of WhatsApp would make their user base every single human on Earth, give or take a couple hundred million. Probably not going to

A 10x increase in the user base of WhatsApp would make their user base every single human on Earth, give or take a couple hundred million. Probably not going to happen. And even with 1/10 of Earth as its user base, it was making <$1B/year. I'd argue that the upside of making launches happen at 1/10 the traditional cost, with the potential for easy reusability with minimal refurbishment (which will allow much more than 2x launch volume, and a much greater cost reduction) is larger than WhatsApp's to a hilarious degree.