I've been unable to find it but early in the railroad boom did rail companies undercharge for freight in order to build demand and interest? Given that they were also given land in exchange fro building, it would have been in their interests to do so. They could also amortize rail costs over a long time as rails are useful for longer than GPUs - but I am also curious if there was an unsustainably low entry price for railroads like Ed is implying for AI tools.