TCP hole punching for Bitcoin nodes behind home NATs?

The discussion revolves around the potential of utilizing "hole punching" techniques to enhance VPN connections, specifically with reference to privacy and network mechanics. The concept suggests that this method could allow for a configuration where nodes can select each other as inbounds or outbounds without the need for a central coordinating system. This setup is particularly noted for its clear definition of how data travels between nodes, which is an advantage over more centralized approaches.

Interestingly, ProtonVPN offers specialized NAT options that might be compatible with this type of networking strategy, as outlined in their support resources available here. The decentralized nature of this approach, reminiscent of networks like TOR and I2C, is highlighted as preferable due to its lack of central coordination. However, it is acknowledged that implementing such a system might not be straightforward and could present challenges in terms of setup and maintenance.

Overall, the inquiry suggests a keen interest in exploring advanced network configurations that promote privacy while maintaining efficient data routing mechanisms. This reflects a broader movement towards understanding and leveraging technology in ways that prioritize user control and security.