06-28-2021, 05:10 PM
(06-28-2021, 04:28 PM)danbrotherston Wrote: A bridge is also an enclosed space, you cannot escape it, and a bridge would be orders of magnitude longer than a tunnel. Making the tunnel wider is more feasible because the tunnel is shorter.
Pedantic nitpicking alert: "orders of magnitude longer" would imply at least two orders of magnitude, or 100x, longer. I expect that's not what you actually mean.