3 month resets on the nether with only 1 portal! Mark my words: Glowstone is going to be very very hard to come by. Rollback technology a generation. We'll be more reliant on torch lighting.
Surely glowstone shouldn't be an easy thing to get a hold of to start with? it's too shiny!
Make villagers. Trade for emeralds. Trade for glowstone. Never step foot in the nether again.
TL;DR You pre-program a route using items inside of chestcarts that will allow you to AFK an entire trip.
It's too bad this post didn't get more attention. This system is so beautiful *praises own work*
I'm not sure folks realize how much time is lost during transfers. I've always welcomed train rides as an opportunity to take a break from minecraft while I travel. Coffee/teabreak and play with my dog time.
I might suggest a sort of alternative idea... I realize that this wouldn't work super well for the current implementation of SG but perhaps in the next iteration.
* Make the map smaller, considerably smaller. Do some tests, whatever the maximum comfortable travel length in a minecart is. Maybe 2000 x 2000 instead of 10,000 x 10,000.
* To make up for the loss of land mass due to smaller size, layer more build worlds parallel to the primary world in the same way the wilds/nether are laid out. IE have portals at the center/fringes.
* Parallel build worlds have other potential upshots: different build rules per realm, possibility to have biome themed realms (mostly desert, mostly ice, etc), etc.
* Major downside: if there are a lot of parallel build realms we may see a ton of portals per station. Unintended consequences performance wise?