[nemothekid]

AFAICT, there's nothing in the GDPR that technically prevents Facebook from existing. At worst I'd imagine that the GDPR will just kill the Facebook developer platform (or more likely, neuter it beyond usability). All the GDPR does is prevent companies from being fast and loose with user personal information without their awareness - they are still free to monetize it, and I bet the vast majority of the world will still be happy to use Facebook despite what warnings the EU gets to put on FB.

I'd imagine most new social networks (if any, the last large social network I can think of Snapchat is 6 years old), will simply try and prove out their network in US first, then hire regulators to figure out GDPR, if the US pass their own GDPR.

Honestly, despite the good intentions of these laws, which I think are good, I think they will just further cement the Google/FB digital advertising duopoly. If you are starting a new social network today, I'd imagine your business model is "capture $demographic that fb poorly serves and get acquired into fb before you become viral in the EU"