I didn't say it was impossible to get the train all the way into the ferry terminal. Only that it requires some fiddles that it didn't before thanks to the bike bridge, plus the likely reaction from the usual Marin NIMBYs, on top of a cost (now inflated) that SMART wasn't in a position to pay during initial construction phases. Reasonable planners might not want to try to organize that kind of project absent really good potential traffic numbers - which we can't have, yet, because we haven't seen how many people might ride the rest of the line yet. I offered an alternative that could probably be built for a reasonable but not insignificant sum. At this stage of the project, most planners and funding agencies would like to seen whether demand and ridership models validate once things start running, before starting work on extensions & modifications. Maybe it would be more fun if the long-distance train-ferry connection were some kind of people mover gadget, or even some tiny-gauge steam train like what they have in England, but for the distance involved (similar to airport terminals near each other - like at O'Hare) a "moving sidewalk" seems like a reasonable accommodation for those who can't or don't want to walk.

It ain't BART, and was never intended to be. But it should be fun to ride.

And yes, we did put a man on the Moon. Though with a considerably better (i.e. Presidential, with a Congress willing to go along) mandate than modern transit has.