Permissionless access to the Farcaster social graph to identify people you regularly public interact with (and who interact with you back) is the new contact sync.

Not a perfect replacement, but pretty good. 

Just need to scale it. :)

I think it's pretty hard for most people to understand right now why FC's social graph is so powerful, so lemme try to graph-pill you:

1) Blockchain has some amazing tools to help move from our current top-down-authority world to a bottom-up-builder world
2) Unfortunately, those same tools can (and are) used to scam people
3) As a result of 2) most true believers can't onboard their personal networks in good faith because they'll get rugged
4) A social graph creates a layer of trust which can mitigate 3)

As a small example, most DAOs fell apart last cycle because they were completely permissionless, and fell victim to non-value-aligned people coming in and extracting as much as they could.  A trust graph could allow you to vet a new member based on your existing members.

Now start to think about other places where you need trust: voting, hiring, travelling, etc.  A trust graph can be really useful in these cases.

Startup artist seeking inspiration.  Champion of /bcard