TL;DR Technology to increase range of the robo-ports, also one to increase the energy they can have inside them or make them use less energy. What ? I suggest some technologies or investigations news arounds bots and robo ports. 1 - Range of robo-ports You have to create a insane amount of roboport...

TL;DR Trains that works with electricity What ? Train that works with electricity, without fuel https://constructionreviewonline.com/wp-content/uploads/2017/06/Uganda-and-Tanzania-to-build-electric-lines-for-the-railway-transport.jpg Why ? There will be a upgrade for the train, for those who preffe...