I'm probably 25 years late to this, but that feeling when 10base2, and 10base5 are able to talk to each other just fine if you manage to connect them together. It is
File:AAUI 10BASE2 cable.png - Wikimedia Commons
A Brief Overview of Ethernet History: The Essential Guide
Belden 9907 RG58 Thinnet 10Base2 Ethernet Coaxial Cable - Per FT | ShowMeCables.com