Tailscale's new technology, 4via6, aims to simplify and optimize network connectivity by mitigating issues related to NAT (Network Address Translation), specifically NAT64. Several user comments express skepticism, particularly regarding the perceived novelty of the terminology and the effectiveness of the solution in truly alleviating existing NAT-related complications. Users emphasize that while the product might improve the current situation, significant underlying challenges may still persist, leading to a perception that the improvements may not fully resolve the issues at hand.