JustZ , 2 months ago Mini maglev. Little tubes. Here's the proof of concept. See how the tubes connect all the areas? https://img-us.aosomcdn.com/thumbnail/100/n0/product/2022/07/28/Ye798a18243e76711.jpg For real though, this sort of tunnel: https://emap-romulus-prod.s3.eu-west-1.amazonaws.com/wp-content/uploads/sites/9/2014/06/Green-Lane-sewer-TBM-naming-competition_143111-1024x683.jpg Just big enough to fit in and blast around.
Mini maglev. Little tubes.
Here's the proof of concept. See how the tubes connect all the areas?
https://img-us.aosomcdn.com/thumbnail/100/n0/product/2022/07/28/Ye798a18243e76711.jpg
For real though, this sort of tunnel: https://emap-romulus-prod.s3.eu-west-1.amazonaws.com/wp-content/uploads/sites/9/2014/06/Green-Lane-sewer-TBM-naming-competition_143111-1024x683.jpg
Just big enough to fit in and blast around.