WhatsApp dominates the world for messaging and phone, and for corporate engagement, even more so than websites, it seems. And social media have replaced social networks for human-to-human interactions.
Where are the connections in the next 10 years? Machine-to-machine interaction such as IIoT-to-AI. Centralized APIs (OpenAI, Anthropic) are siloed. If you build an autonomous AI agent, it currently has no standard way to "talk" to an agent from another company, negotiate a task, or pay for it. An agent can have an identity (npub), listen for job requests (relays), deliver the work (encrypted DMs), and get paid instantly (Zaps/Lightning).