If travelers sat on connected lawn chairs on wheels guided by rails pulled by a motor on wheels we might reduce the ratio of rail train weight to that of the weight of passengers carried. An Amtrak passenger train weighs about 200,000 lbs. and holds say 100, 200 lb. people, for a ratio of about 10 to 1. A light weight auto is about 2000lbs. and can hold five passengers for about 1000lbs. (those are likely crammed passengers) for a ratio of 2 to 1. Can we foresee lighter trains in the future where the weight ratio might reach 2 or smaller? Thanks for any help!