Re: Freight is toughter than you think
Actually, a shipping container sized pod makes sense. Slot a container, into it and off you go. That container could be full of freight, or fitted with seats. Then the passenger loading (and all the associated people problems) is decoupled from the train.
It's unconvincing. You still have to get the containers ready and load them. You'd simply be pushing the problem back a bit.
As for freight, it's a joke. To move a container that way you'd be putting it on a truck, driving it to the loop station in the centre of SF and then you'd be waiting for a free slot. Either you pay a lot of money to get an early slot, or you wait a long time.
One wonders just how far down the road to LA the truck would now otherwise be, or how much cheaper air freight would have been.