If they manage to reduce the cost of tunnel boring then that's super exciting and I congratulate them.
But all this discussion of what to put in the tunnel seems very silly to me.
Are they just re-discovering subways? Do they know that there are subways in the world (e.g. Paris) that run out rubber tires?
But all this discussion of what to put in the tunnel seems very silly to me. Are they just re-discovering subways? Do they know that there are subways in the world (e.g. Paris) that run out rubber tires?