Maybe it would be good to add that the Bio-Globe concept doesn't scale up well in size, because it gets complicated to use all the inner volume without a lot more construction. It quickly becomes easier to dig a huge cave in an asteroid.
The advantage of the globes are that they are easy to set up and to maintain... and that they are mostly self-contained.
(edit)
Another advantage of the standard 6 meter globes is you can easily transport the parts for a globe in a large Fen-Truck... larger ones are much more difficult to transport and setup.
The advantage of the globes are that they are easy to set up and to maintain... and that they are mostly self-contained.
(edit)
Another advantage of the standard 6 meter globes is you can easily transport the parts for a globe in a large Fen-Truck... larger ones are much more difficult to transport and setup.