随着大多数单链路通信设置的性能限制以及良好的特性和实际收发器架构的发展，只有增量的改进才是可能的。对于这些设置。未来的工作必须超越这些。保持单路研究活动的可行路径是重新审视形成墙的基础的假设。（With the performance limits of most single-link communication settings of interest well characterized and with practical transceiver architectures developed, only incremental improvements are possible for these settings. Future work will have to go beyond these. A viable path for keeping the single-link research alive is to revisit the assumptions that form the foundation of the wall that has been hit.）