All the new products around WireGuard. I'm so tired of running VPNs. NAT traversal with protocols like STUN, TURN and ICE are going to allow point-to-point networks for all the clients.
This may have been true in the early years, but my understanding is that DARPA has played a large role in funding the development of RISC architecture. [1]
https://tailscale.com/
https://portal.cloud/app/subspace